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Chignell, Hugh. "BBC Radio 4's 'Analysis', 1970-1983 : a selective history and case study of BBC current affairs radio." Thesis, Bournemouth University, 2004. http://eprints.bournemouth.ac.uk/335/.
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The 'historical turn' in British Media Studies has yielded new histories of television but little work on the history of post-television radio. This thesis hopes to contribute to that neglected area. The research, based on radio and written archives and interviews with former BBC staff, examines the BBC Radio 4 current affairs programme, Analysis between the years 1970 and 1983. It addresses a number of questions about the programme, including the precise reasons for its creation, how it evolved, and how it covered a range of current affairs topics. In addition, this history of current affairs radio provides useful, new insights into the rise of professionalism in the BBC, the existence of informal networks, impartiality and bias, the tension between elitism and populism and the specificity of current affairs. The thesis includes a full discussion of the history of current affairs radio from 1927 to 1960. In this section the relationship of the literary elite to the BBC in the 1930s is addressed and the evolution of the 'topical talk' and the post-war 'talks magazine' are described. The precise origins of Analysis in the late 1960s are explained with reference to the tension between the more journalistic and populist 1960s news sequences and the elitist and anti-journalistic talks tradition from which Analysis emerged following the publication of Broadcasting in the Seventies. The role of individual presenters of Analysis is examined and the evolution of the form of 'broadcast talk' employed on the programme. There is a chapter on Analysis in Africa and a concluding chapter which evaluates the relationship between Analysis and the emerging political ideology of Thatcherism. By focussing on one programme over a period of time, and following the careers of named individuals who worked in BBC radio, it is possible to reveal conflicting broadcasting values and ideals of professionalism and current affairs and to trace these back to their antecedents in the pre-war BBC.
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Garnham, Alison Mary. "Hans Keller and the BBC." Thesis, Goldsmiths College (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312713.
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Weir, Patrick. "Popular geopolitical assemblages : BBC radio and foreign news." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/20525.
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This thesis aims to explore strands of assemblage, actor network theory and object oriented philosophy to the study of popular culture and world politics. Specifically it focuses on the linkages to be made between radio broadcasting, travel writing and journalism, in light of these theories. It does this through the presentation of series of archival encounters with material relating to BBC radio and foreign news production during the 1960’s Cold War period, an era in which radio broadcasting and radio technologies were absolutely central to the understanding wider geopolitical environments. The opening chapters of the thesis argue for the utility of a version of relational materialist approaches hybridised with discursive analytic frameworks as interlinked ways of thinking, which are more appropriate to understanding radio as a semiotic-discursive hybrid of popular cultural construction, as read through BBC radio and foreign news during the Cold War. The empirical chapters look to a variety of archival texts produced by radio, including infrastructural and network plans, scripted news series and individual biographical archives and turns the tools from the hybrid framework to address them. The thesis then moves towards a further provocation: to imagine radio itself differently, as a geo-political force, and suggests further possibilities for research through engagement with conceptual art, experimental literature and sound recording to conceive of some of the non-representational aspects radio’s multiple fields of relations. The thesis concludes with a call, based on what has gone before, to recognise the importance of networked and assemblage ontologies to understanding further historical and contemporary formations of geopolitical media, and suggests further research based on the strategies it identifies.
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Thomas, Jeanette Ann. "A history of the BBC features department 1924-1964." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359694.
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Skoog, K. "The 'responsible' woman : the BBC and women's radio 1945-1955." Thesis, University of Westminster, 2010. https://westminsterresearch.westminster.ac.uk/item/98wyw/the-responsible-woman-the-bbc-and-women-s-radio-1945-1955.
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The BBC's women's radio in the British post-war period (1945 – 1955) is still a very much neglected area of historical research, although the BBC after the Second World War continued to produce many talks and programmes that were specifically aimed at women, such as the factual Woman’s Hour (1946) and the fictional Mrs. Dale’s Diary (1948). By building on archival research conducted mainly at the BBC Written Archives Centre, and further work carried out at the Mass Observation Archive, this thesis addresses the production side, as well as the text, and the audience; in a sense a very multifaceted approach. Focus has been laid on women's programmes such as Woman’s Hour and Mrs. Dale’s Diary. But other talks and discussions have also been considered not necessarily with just a focus on women. Throughout the research the editorial process has been of major interest; the thinking behind; the production process. The thesis will demonstrate the importance played by BBC women's programmes in this period but also in the general development of British broadcasting. The thesis also offers a detailed insight into the internal culture of the BBC, and its women's programmes, at a time when questions about culture and taste were surfacing. The thesis will therefore be an original contribution to knowledge to British broadcasting history, but due to its interdisciplinary nature using radio as a 'Historian', this work is further challenging previous assumptions about the post-war housewife, and the perception of the immediate post-war years as a particular stifling and conservative period, with no feminism.
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Linfoot, Matthew. "A history of BBC local radio in England, c1960-1980." Thesis, University of Westminster, 2011. https://westminsterresearch.westminster.ac.uk/item/8zz18/a-history-of-bbc-local-radio-in-england-c1960-1980.
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The story of BBC Local Radio in England, from the days of its conception around 1960, through to the launch of the first stations in 1967 and the finalisation of how to complete the chain in 1980 is a neglected area of research in media history. This thesis tells this story, using previously undocumented research from the BBC Written Archive Centre, and supplemented by oral history interviews with key participants. The approach is multi-faceted. Part of the investigation lies in gaining a greater understanding of how the BBC operated as an institution during these years. The internal culture of the BBC presents a series of complex issues, and the evolution of local radio illustrates this in many ways, in matters concerning management, autonomy, technology, the audience and finance. Linked to this are the differing notions and definitions of what „local‟ meant, in terms of the original concept and the output in practice. For local radio, this had a crucial impact on station location, the size of the transmission area and the degree to which the stations were able to represent and embody their communities. This history also assesses the impact the stations made, often in contrast to the popular image and perception of local broadcasting. The original contribution to knowledge that this thesis makes is in narrating this history for the first time, and in doing so, challenging previous assumptions about the nature of local broadcasting as part of the BBC and as part of the wider community.
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Owen, Jenny. "Crisis or renewal : the origins, evolution and future of public service broadcasting 1922 to 1996." Thesis, University of Westminster, 1996. https://westminsterresearch.westminster.ac.uk/item/948yy/crisis-or-renewal-the-origins-evolution-and-future-of-public-service-broadcasting-1922-to-1996.
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In the 1980s the future of public service broadcasting in Britain was called into doubt. Technological developments in cable, satellite and digital technologies were, it was argued, poised to end the condition known as 'spectrum scarcity'; while the emergence of a neo-liberal Conservative government, pledged to rolling back the frontiers of the state', was of the opinion that the current system of public service broadcasting provision was no longer necessary given the number of broadcasting channels now available; broadcasting, in its view, would increasingly be able to mirror the publishing industry in its structure and future regulation. Critics however, were loathe to accept the argument that technological considerations alone ought to drive broadcasting policy; and two key questions emerged. Firstly, how was public service broadcasting to be defended in a climate increasingly hostile to public service ideals and institutions in general; and secondly, and as a result of the first question, how was public service broadcasting to be understood? This thesis seeks to answer both these questions and argues that in the process of clarifying the nature of public service broadcasting in the past, that solutions for its defence in the future will be found. Public service broadcasting, was not, it will be argued, simply about institutions like the BBC, but evidence of a much broader and widely shared (across the political divides) understanding of the proper role of broadcasting in a democratic society (at least until the 1980s). In short, public service broadcasting in the past was never simply a response to a set of technological conditions; instead it was forged from a set of political, economic, Administrative and cultural ideas about the nature of society and broadcasting's role in it; and hence its ability to respond to the new conditions of the 1990s and beyond.
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Smith, David Mark. "Politics through the microphone : BBC radio and the 'New Jerusalem' 1940-1945." Thesis, Queen Mary, University of London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390616.
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Pinkerton, Alasdair Douglas. "Radio geopolitics : the BBC world service and britain's 'voice around the world'." Thesis, Royal Holloway, University of London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445003.
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Rewinkel, Kimberly Erin. "Representations of Housewife Identity in BBC Home Front Radio Broadcasts, 1939-1945." Bowling Green State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1363267060.
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Keller, Jared Robert. "A scientific impresario : Archie Clow, science communication and BBC Radio, 1945-1970." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/57504.
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From the end of the Second World War to the close of the 1960s, the BBC’s approach to spoken-word science programming changed considerably. Whereas the BBC of the late 1940s saw itself as a platform from which scientists could deliver authoritative talks on science directly to the British public, the BBC of the late 1960s saw its role as the examination and interrogation of science through journalistic programmes presented by professional broadcasters or science journalists. Utilizing a wide range of archival and primary sources, this thesis details the tensions and deliberations which brought about this transition within BBC radio. In particular it focuses on the career of Archie Clow, a science producer at the BBC from 1945 to 1970 who was instrumental in both defining and implementing the BBC’s approach to science broadcasting during this period. His career serves as a lens through which the BBC’s changing conception of the value and purpose of science programming can be examined. In the early post-war period Clow fancied himself a ‘scientific impresario’ charged with the identification and recruitment of eminent scientists, yet by the end of the 1960s many of his colleagues considered themselves journalists rather than impresarios. Archival records show that this had much to do with a transition within the wider BBC toward a more journalistic, news-style approach to spoken-word programming. The thesis argues that by the end of this period the BBC saw itself as a communicator of science in its own right. It further argues that as the BBC moved to mediate science and scientists on behalf of the British public, scientists increasingly lost control over the framing and delivery of science programming, eventually finding themselves largely reliant upon and beholden to professional broadcasters.
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Leonard, Glen Stewart. "'The last utterances of the civilized' : E.M. Forster and the BBC." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609445.
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Rayner, Philip. "When radio was king : the BBC Light Programme, listenership and taste 1945-1955." Thesis, Cardiff University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410357.
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Vedel, Bonnery Audrey. "La France de la BBC, 1938-1944." Dijon, 2005. http://www.theses.fr/2005DIJOA001.
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Morse, Daniel Ryan. "Fiction on the Radio: Remediating Transnational Modernism." Diss., Temple University Libraries, 2014. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/271607.
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English<br>Ph.D.<br>The BBC was the laboratory for major experiments in modernism. Notions of aesthetics, audience, and form were tried out before the microphones of 200 Oxford St., London and heard around the world, often before they were in England. The format of the radio address and the instant encounter with listeners shaped both the production and politics of Anglophone modernism to an extent hitherto unacknowledged in literary studies. This dissertation focuses on how innovative programming by modernist writers, transmitted through instantaneous radio links, closed the perceived physical, cultural, and temporal distances between colony and metropole. Charting the phenomenon of writing for, about, and around broadcasting in the careers of E. M. Forster, Mulk Raj Anand, James Joyce, and C. L. R. James, the dissertation revises the traditional temporal and geographical boundaries of modernism. Contrary to the intentions of the BBC's directors, who hoped to export a monolithic English culture, empire broadcasting wreaked havoc on the imagined boundaries between center and periphery, revealing the extent to which the colonies paradoxically affected the cultural scene "at home." The Eastern Service (directed to India), where the abstract idea of a serious, cultural station was put into practice, was the laboratory for the Third Programme, England's post-war cultural channel. Yet the effects of Empire radio are hardly limited to its considerable impact on postwar British broadcasting. The intellectual demands of Indian listeners set the parameters of and bankrolled the literary work performed by modernist writers in England. Addressing authors and readers in India from a studio in London, Mulk Raj Anand embodied a crucial aspect of the Eastern Service, its treatment of English and Indian culture as mutually influential and coeval. Anand's broadcasts and 1945 novel The Big Heart (written during his BBC years) critique imperialism by positing the simultaneity of Indian and English temporality. In so doing, Anand's works offer a rejoinder to narratives of colonial belatedness pervasive both at the time and in the present. When tackling such transnational work, radio studies is uniquely positioned to provide an archive and a radical new model for modernist studies as it grapples with critiques of the western diffusionist model of culture. Literary production in and around the BBC registers radical cultural upheaval with a diagnostic power that reveals the attenuated ability of hypercanonical modernism alone to illuminate modernity's complex relays. Modernism on the BBC was not an exclusive canon of works, singular set of formal features, or even a unique posture. Instead, writers such as James, Forster, Anand, and Joyce offered complex responses to the pressures of modernity, including disruptions wrought by colonization, immigration, and war. <br>Temple University--Theses
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Bloom, James. "The broken yoke : a dozen BBC radio plays about the Anglo-Irish past and its present." Thesis, University of Exeter, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390127.
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Wrigley, Amanda. "Engagements with Greek drama and Homeric epic on BBC Radio in the 1940s and 1950s." Thesis, Open University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518377.
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Dann, Lance. "BBC radio drama commissioning (1989-2009), and two scripts emerging from twenty years of change." Thesis, Bath Spa University, 2011. http://researchspace.bathspa.ac.uk/1493/.
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Sabih, Ghada. "Radiodiffusion internationale à destination du Proche-Orient [RMC(M-O) et la BBC] : évolution du média et attentes du public -le cas Libanais-." Besançon, 2000. http://www.theses.fr/2000BESA1023.
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A la fin du deuxième millénaire et à l'approche d'une ère qui voit dans tous les domaines l'essor de la mondialisation, cette thèse s'intéresse à la place que peut encore y occuper un média, dont la vocation est mondiale par définition, comme la radio internationale. Quel rôle peut encore jouer ce média ? Quelle place peut-il encore avoir ? Et comment devrait-il procéder face à la marée des médias qu'ils soient locaux ou extérieurs, qu'ils soient diffusés par les ondes herziennes, ou par satellites, ou bien par le biais d'internet. Devrait-il associer ses auditeurs à la conception de ses programmes et, si oui, de quelle manière ? Quelle place doit-il accorder à son auditeur dans l'élaboration de ses programmes ?. . .
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Pepler, C. S. L. "Discovering the art of wireless : a critical history of radio drama at the BBC, 1922-1928." Thesis, University of Bristol, 1988. http://hdl.handle.net/1983/b57044c6-35b8-4348-89fb-29d993930469.
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Benson, Amanda. "An investigation into BBC Radio 4 comedy appreciation ratings (AIs) : 'the cesspool with the velvet lid'." Thesis, University of Westminster, 2014. https://westminsterresearch.westminster.ac.uk/item/96vy2/an-investigation-into-bbc-radio-4-comedy-appreciation-ratings-ais-the-cesspool-with-the-velvet-lid.
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BBC Radio 4 comedy is heard by over five million people every week in the UK. Selecting which comedy programmes are to be broadcast on the station is mainly the duty of a single person: Radio 4’s Commissioning Editor for Comedy. She faces a delicate task, since her personal choices will affect the listening experience of millions of people. A poor selection will potentially result in a waste of licence payers’ money, can have an effect on the perception of the station as a whole, and may even enrage the listeners. The BBC currently generates ‘objective’ numerical evaluations of audience responses in order to aid the commissioning decision-making process, but are the resultant figures useful? This thesis attempts to answer that question by investigating the suitability of this data in determining the quality of Radio 4 comedy programmes, using analysis of over 650,000 responses. The key measure of objective audience evaluation of BBC broadcast programmes is the Appreciation Index (AI ), a weighted mean value derived from programme appreciation ratings on a 10-point scale from a panel of respondents. This metric is also published as an aggregate station-level score on a quarterly basis as a station performance indicator, used as a ‘meta score for channel quality’. For BBC radio, there is no other recognised objective measure of programme performance that allows episode-level evaluation; the industry standard, RAJAR, does not allow sufficient granularity for audience size information at this level of detail. Thus BBC radio (in comparison to BBC television) has a particular need for the AI to provide a meaningful figure to facilitate programme evaluation. Strict statistical theory dictates, however, that calculating a mean score using data taken from subjective ratings may not give useful results, particularly if the data spread is not unimodally distributed nor taken from a non-interval level scale. Given evidence that comedy is a divisive genre (and indeed as a constituent genre of Radio 4’s broadcasting there is desirability for it to be so), comedy may be particularly poorly represented by AI scores. Indeed, the analysis of the data shows that that the responses are not distributed in a fashion that allows the mean to be a useful measure of central tendency. Not only are the aggregate responses not spread in a unimodal distribution, individual respondents have been found to adopt patterns (types) of responses that differ from the topline distribution. Academic investigations relating to programme appreciation ratings have been relatively scarce, partly due to the limited number of broadcasters that measure this aspect of audience research, as well as the tendency for those that do to refrain from disseminating the data. Where studies have actually been published, researchers have not addressed the issue of the shape of the data’s distribution nor the nature of its scale. This work’s original contribution to knowledge considers these aspects specifically and does so for radio comedy rather than for the more typically utilised television.
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Skuse, Andrew. "'Negotiated outcomes' : an ethnography of the production and consumption of a BBC World Service radio soap opera for Afghanistan." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364571.
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This study examines the production and consumption of a BBC World Service soap opera called New Home, New Life that is produced for the radio listening public of Afghanistan. Ethnographic fieldwork was undertaken at the BBC's radio production unit in northern Pakistan and in Pashtun communities within rural and urban areas in south-east and central Afghanistan. Critically informed by a material culture perspective, this thesis promotes a relational approach to the study of mass media production and consumption, this being perceived to represent an advance on studies that ignore spheres of production in favour of audience consumption. The choices and resources that listeners invest in radio services is addressed from the standpoint of the structuring of relations of trust, which in turn is related to issues of popularity, conflict and domestic radio use. The structures and prosaic daily patterns of radio soap opera production are addressed, with analysis being deepened to examine the production definition and audience appropriation of the soap opera's fictive context and characters. Here, issues of episodic and melodramatic structure also come to the fore. The representation of politics and religion represents a critical aspect of production, consumption and BBC impartiality, yet beneath policy it is shown that a far more social and negotiated form of production occurs. Following this analysis, the issues of localisation, romance and producer-consumer articulations are considered. Finally, the sociality of the soap opera is traced through audience gossip and the impact that emotive storylines have upon male and female listeners. Here, the issues of gender and space emerge in analytical focus.
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Day, Rachel. "BBC Media Action Radio for Development: Exploring maternal health programs with a gender and development lens in Ethiopia." Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-22688.
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This paper uses case study analysis to examine one edutainment radio project in particular produced by BBC Media Action in Ethiopia. This edutainment project, funded by the UK Department for International Development, was created to improve maternal and neonatal health, and takes an interesting approach regarding gender differences. The content of the data is qualitative in nature. The research design uses a mixed-methods approach and consists of interviews with program hosts and station/program managers; a review of existing research reports and communications produced by BBC Media Action; and a review of relevant grey literature.Using a gender and development approach to frame my research allowed me to examine how gender issues are addressed and affected in the programmes aimed at improving maternal health. What is unique about these programmes in comparison to other edutainment programmes aimed at improving maternal and neonatal health in rural areas of Africa is that although the primary target audience is women of child-bearing age, the programmes are also designed to target their husbands.I argue that the radio programs, Biiftuu Jireenyaa and Jember, seem to focus on changing men’s behaviour while protecting existing power dynamics, instead of challenging them. BBC Media Action’s project claims to have been successful in affecting a degree of change in terms of health practices aimed to improve maternal and neonatal in rural Ethiopia. The project, however, does not seem to have impacted the power differences between men and women. Instead, they seem to have used the existing power differences to assist their health aims.
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ヘイグ, エドワード, and Edward Haig. "The language of youth crime: a systemic functional linguistic and critical discourse study of BBC radio news." 名古屋大学大学院国際言語文化研究科, 2009. http://hdl.handle.net/2237/11836.
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Dibbs, Martin G. R. "Shaping popular culture : radio broadcasting, mass entertainment and the work of the BBC Variety Department, 1933-1967." Thesis, University of St Andrews, 2012. http://hdl.handle.net/10023/3165.
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This thesis examines the extent to which the BBC was able to shape the output of popular culture on radio in Britain, according to its own system of beliefs, between the years 1933 and 1967. This research will show that from the outset, the BBC was an institution with a mission to inform, educate and entertain the nation. While it was not opposed to entertainment, its focus was didactic and supported a mission to improve its audience both culturally and intellectually. This policy was not always welcomed by the audience but, with the exception of the war years, persisted into mid 1950s. The Variety Department was formed in 1933 to produce all forms of light entertainment and this research will examine how its policies shaped the production of popular culture over the period concerned. This study looks not only at the workings of the Variety Department but also the topics of Americanisation and vulgarity, the two areas in which the BBC had particular sensitivities. It analyses the BBC's strategies to counteract the American effect on popular music and spoken-word programmes and how it provided its own particularly British form of entertainment in order to produce programmes it considered suitable for British audiences. It also investigates programme censorship imposed by the BBC to mitigate vulgarity in programmes, so as to produce those it considered suitable for its audiences. This thesis will contend that for over 40 years the BBC Variety Department produced popular entertainment programmes on radio which became an integral part of people's daily lives until, within a few years radio was superseded by television as the nation's principal provider of domestic entertainment. There has been no discrete study of the BBC Variety Department and it is intended that this research will add to the existing scholarship in BBC history and contribute to the analysis of radio's place in domestic popular culture in the period examined.
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Cyzewski, Julie Hamilton Ludlam. "Broadcasting Friendship: Decolonization, Literature, and the BBC." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461169080.
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Purcell-Davis, Allyson. "Interaction in the radio news interview : a case study of BBC Radio 4's the Today programme and the Human Fertilisation and Embryology Act 2008." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/88309/.
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News interviews are core within current practices of journalism. They point to the existence of a mediated public space and bolster the concept of democratic accountability. This research investigates what impact these concepts have on the news interviews broadcast by the Today programme (BBC Radio 4) and how interaction within them invoked the public. The programme has a responsibility to uphold the democratic life of the UK, making it a compelling focus of research. The case study examined in this thesis is the broadcast of news interviews concerning the Human Fertilisation and Embryology Act 2008 (HFEA 2008) and how they shaped representations of the biomedical techniques contained within the legislation. In particular, research investigated what the news interviews reveal about the biological citizen: a specific configuration of citizenship increasingly important in the twenty first century. The research method is Conversation Analysis and the news interviews as broadcast are the empirical data on which findings are based. The study contributes to the understanding of the method through the investigation of the structural organisation of the news interviews and how this affected interaction. Findings suggest that the news interviews on the Today programme highlights the political dimensions of the HFEA 2008, that interviewees were predominantly MPs or public figures and that the gender ratio is skewed towards male voices. It points to the fact that the programme prefers news interviews that contain two interviewees, as this promotes adversarial encounters within interaction. Research also establishes how interviewers have at their disposal a range of devices, such as third party citations, which they use within questions in order to achieve a neutral posture. A further set of findings uncovers the need of interviewees to maintain a positive image of themselves, employing politeness strategies in order to co-operate when answering a question.
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Silva, Nair Daniela Carvalho Moreira. "A rádio e a web: um estudo comparativo entre as rádios de informação nacionais e a BBC Radio." Master's thesis, [s.n.], 2010. http://hdl.handle.net/10284/1680.
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Dissertação de Mestrado apresentada à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências da comunicação, especialização em Jornalismo.<br>Este estudo integra-se no âmbito da compreensão do paradigma comunicacional moderno, respeitante à problemática das mudanças operadas pela tecnologia na rádio e, mais premente ainda, do seu papel na web. A Internet posicionou a rádio num ambiente digital sem precedentes, com a produção e gestão de novos conteúdos áudio.
A actualidade e o impacto do processo de digitalização, apresentam-se como o acontecimento mais recente que veio afectar todos os domínios do conhecimento e da experiência humana. A estrutura da comunicação foi alterada e continua em desenvolvimento, razão pela qual, devemos tentar compreender as implicações desta mudança ao nível dos procedimentos, da apresentação dos conteúdos e das consequências. Este trabalho propõe-se a uma análise exaustiva das páginas online das principais rádios de informação nacionais e a uma comparação com aquilo que pode constituir um modelo alternativo, o site da BBC Radio.
Partimos da teorização sumária sobre a técnica e a sua importância no desenvolvimento de novas experiências. O estudo incide ainda sobre a origem e as transformações da rádio online e as estratégias de comunicação suportadas pelas novas tecnologias que transformaram o velho receptor radiofónico. As conclusões reflectem a forma como as páginas se organizam e que reflexo têm no consumidor final do produto: o ouvinte. A análise também identifica as semelhanças e diferenças entre as estratégias adoptadas pelas rádios nacionais de informação e pela BBC. Estratégias como estas são o carimbo da rádio no mercado online.
This study is integrated in the understanding of modern communicational paradigm, concerning the changes of radio technologies and, more important, it’s role on the web. The internet has placed traditional radio in a new environment with regard to the production and management of different audio contents.
Today the impact of digital process is the most recent event that is affecting all knowledge and human experience domains. Communication structure was altered e is still developing, reason which we should try to understand the implications of this change while talking about procedures, content presentation and consequences. This study suggests an exhaustive online Portuguese radio talk analysis and a comparison with what may consist in an alternative version, the BBC Radio website.
We started out with a summary theorization about technique and its importance in the development of new experiences. This investigation incises about the origin as online web radio transformations and draws communication strategies supported by new technologies that have transformed the old radio receptor. The conclusions reflect the ways in which Portuguese radio networks organize and the reflex in the final consumer: the listeners. The analysis also identifies the similarities and differences between the strategies adopted by Portuguese online radios and BBC Radio. Such strategies have become the radio’s hallmark in media market.
Este estudio todavía se combina en el alcance de la comprensión del paradigma moderno y la problemática comunicacional de los cambios funcionados para la tecnología en la radio y, el más presionar, de su papel en tela. El Internet localizó la radio en un ambiente digital sin precedentes, con la producción y la gerencia del nuevo contenido audio.
La actualidad y el impacto del proceso del digitalización, se presentan como el acontecimiento más reciente que vinieron a afectar todos los dominios del conocimiento y de la experiencia humana. La estructura de la comunicación fue modificada y continúa en el desarrollo, razón de el cual, debemos intentar entender las implicaciones de este cambio al nivel de los procedimientos, de la presentación del contenido y de las consecuencias. Este trabajo considera un análisis que agota de las páginas en línea de las radios nacionales principales de la información y a una comparación con lo que puede constituir un modelo alternativo, el sitio de la BBC radio.
Rompemos del teorización sumaria en la técnica y de su importancia en el desarrollo de nuevas experiencias. El estudio todavía sucede en el origen y las transformaciones del de radio online y de las estrategias de la comunicación apoyada por las nuevas tecnologías que habían transformado el viejo receptor radiofónico. Las conclusiones reflecten la forma como las páginas si organizan y los reflejos en el consumidor final del producto: el oyente. El análisis también identifica las semejanzas y las diferencias entre las estrategias adoptadas para las radios nacionales de información y el BBC. Estrategias como éstos son la estampilla de la radio en el mercado en línea.
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Hoare, Lottie. "Secondary education in BBC broadcast, 1944-1965 : drawing out networks of conversation and visions of reform." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/273980.
Full textAbstract:
This study examines the representation of Local Education Authority (LEA) secondary schooling in England and Wales as it was portrayed in non-fiction British Broadcasting Corporation (BBC) programmes in the twenty-one years that followed the 1944 Education Act. The primary sources drawn on for this study include the surviving microfilmed radio scripts, dating from 1944–1965 and held at the BBC Written Archives (BBC WAC). The correspondence files from contributors to programmes also provide a key source from BBC WAC. The majority of the programmes considered are radio broadcast, however some documentary films on the topic of secondary education, made by the BBC and transmitted on television, are also analysed. Where audio-visual copies have survived, the programmes were viewed at the BFI Viewing Services. The study draws on 235 BBC programmes in total, made in the years 1944–1965. The details of these broadcasts can be seen in the three Appendices accompanying this study. The study also employs the use of drawing to present key ideas. This study explores how broadcasts are formed as cultural products. The research questions address: what was the content of these programmes? Who collaborated to create and edit these programmes and how were the programmes devised to inform the public about the provision of secondary education? What was the role of the All Souls Group (ASG) in this collaboration? The public included a domestic audience in England and Wales and an overseas audience for whom distinct broadcasts were usually created. A further element of the research is a scrutiny of the BBC as an organization that positions itself as neutral. The considered programmes enabled a group of eloquent educationalists to use their rehearsed and edited ‘conversation’ on a public stage. As the study unfolds it becomes apparent that the members of the informal education discussion group, the ASG, were lobbying to encourage the topic of secondary education to resurface sufficiently often on air. The study concludes with recognition that the reinforcing of loyalties between overlapping networks, such as the BBC and the ASG, should no longer be approached with reticence in academic research.
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Demonget, Ariane. "Les stations de radiodiffusion internationale et la question européenne : analyses autour de BBC World Service, e la Deutsche Welle Radio et de RFI." Bordeaux 3, 2010. http://www.theses.fr/2010BOR30048.
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La fin de la Guerre froide engendre une remise en question de la radiodiffusion internationale, dont la fonction de « substitution » n'est plus légitimée. Ce bouleversement mondial permet aussi une accélération de la construction européenne. Les stations de radiodiffusion internationale BBC World Service (BBCWS), Deutsche Welle Radio (DWR) et Radio France Internationale (RFI) se trouvent à la fois dans l'obligation et dans la nécessité de traiter de l'Europe, que le « tournant », rend politiquement réalisable. En effet, ces stations, qui représentent trois pays piliers de l'Union européenne, et qui sont mues par une vocation internationale, devraient être un vecteur prioritaire de l’opinion publique européenne. En fait, ces trois stations traitent bien de l'Europe, mais des divergences se font jour d'une station à l'autre. Tout d'abord, les émissions dédiées à l'Europe sont souvent liées à des subventions proposées par l'Union européenne, afin que le sujet « Europe » soit plus présent dans les médias et que les citoyens européens s'y familiarisent. Ensuite, RFI et la DWR créent, et parfois, pérennisent des émissions de partenariat et produisent aussi des émissions propres à leur station, avec l'aide des subventions européennes. À contrario, le BBCWS évite les partenariats et les subventions, et l'unique émission consacrée à l'Europe perdure sur toute la période analysée (2004-2009). Enfin, la DWR manifeste un engouement particulier pour le sujet européen, en lui dédiant des émissions nombreuses, variées, mais aussi, souvent éphémères. Aussi, ces trois stations n'apparaissent pas nécessairement comme des vecteurs prioritaires de l’opinion publique européenne<br>The end of the Cold war generates a challenge to international broadcasters, since the purpose of “substitution” is no longer legitimate. This world upheaval allows also an acceleration of european integration. The international broadcasters BBC World Service (BBCWS), Deutsche Welle Radio (DWR) and Radio France Internationale (RFI) need and at the same time have no other option than to deal with the European issue, now made politically feasible by the “turning point”. These three stations driven by an international scope and representing mainstays of the European Union should in fact be a primary vehicle for the European public opinion. As a matter of fact, the three stations indeed deal with the European issue but differences emerge from one station to another. First, radio broadcasts dedicated to Europe are often linked to grants offered by the European Union for the european issue to be more prevalent in the media and for the citizens to become familiar with it. Then, RFI and DWR create and sometimes perpetuate joint radio broadcasts as well as produce some other broadcasts for their very own stations often with the help of the European grants. The BBCWS on the other hand avoids partnerships and grants and the only broadcast devoted to Europe lasts throughtout the era analyzed here (2004-2009). At last, the DWR shows an evident enthusiasm for the topic of “Europe” dedicating numerous and varied but often short-lived broadcasts. Also, these three stations do not necessarily seem to be primary vehicles for the European public opinion
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Devlin, John P. "The relationship between the BBC and the commercial radio sector in promoting DAB (Digital Audio Broadcasting) in the United Kingdom." Thesis, Bournemouth University, 2016. http://eprints.bournemouth.ac.uk/25359/.
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The place of Digital Audio Broadcasting (DAB) in the UK provides an interesting area of study. As of 2015, it is a platform which has been in existence for twenty years. During that time its position has been nebulous. It represents only one method of listening to radio output in a digital format but one in which the BBC, and latterly, the commercial radio sector, placed a huge degree of trust. It has however not become the standard mode of radio listening. One can argue that after much proactive effort from within the UK radio industry, its position may be beginning to falter somewhat in the commercial sector while remaining a paramount policy objective for the BBC. The aim of this thesis is to account for the emergence of DAB and its impact on the relationship between the BBC and the commercial radio sector. It examines the separate and joint roles of each in promoting DAB and highlights how this led to a unique period of cooperation between the two. A historical backdrop is necessary in order to establish the previous state of relations, before embarking upon the core of the thesis which argues that both parties adopted significant changes of posture in order to promote DAB. I argue that the implementation of DAB as a new radio technology represents a marked period of institutional change within the UK radio industry. In playing distinct, separate roles, I show how this reveals a maturity within the industry whereby the BBC and the commercial sector reached a point of equality. In promoting a joint role, based on a policy of overt cooperation, I demonstrate how this represented a major shift in the historical relationship between both parties. Relying on a small canon of secondary sources and an extensive survey of primary source documentation, as well as interviews with some of the key players in DAB and the UK radio industry as a whole, this thesis provides a study of a significant period in British radio history which witnessed the development of a nascent radio platform, coupled with a significant change in the dynamic of existing relationships within the industry. In doing so, it delivers a wider historical interpretation of a particular point in radio history and marks a critical phase when the very nature of the industry changed.
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Edge, Kevin. "Musical eutopias : a positive critique of popular musics & mediated listening, with particular reference to the BBC & public service radio." Thesis, Cardiff University, 2009. http://orca.cf.ac.uk/54818/.
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Musical eutopias offers positive critiques of the socio-cultural aspects of popular musics, the medium of radio in general, and the British Broadcasting Corporation in particular. Marxian critiques of what Ms9, together with normative, socialist visions of what 'ought' to be, are reviewed with reference to radio's listening subjects and broadcasting ideals. Arguably, popular musics embraced by radio only offer a dystopian standardisation for a mass audience. However, it is mooted here that socio- cultural knowledges mediated by a public service broadcaster can contribute positively to a subject's negotiation of modernity and the objective world. The humanistic potentials of music and broadcasting are considered using two conceits: (1) Sir Thomas Mote's diagnostic benchmark of desired alternatives and perfection: Utopia and (2) Utopia's 'desublimation' in More's quasi-antonymic term, eutopia which is an actual site of resources and relative goodness. To sift for music's Utopia and the eutopian aspects of Theodor Adorno's 'music in radio', the writings of Ernst Bloch, Herbert Marcuse and Jurgen Habermas are reassessed and joined by new Utopian theory from Caryl Flinn, Stephen Eric Bronner and allied thinkers. The cultural and allegorical dimensions of music, and the institutional histories and ideals of the BBC are examined through the work of Antonio Gramsci, Raymond Williams, Michel Foucault, David Levin, Christopher Norris, Simon Frith, Georgina Born and others. A near-Kantian sensibility, imagination and understanding are argued to develop (after Marcuse) in the musical eutopias of public broadcasting. There, a dialectic of Utopian musical desires, socio-political philosophies and independent professional agency promotes rich aesthetic content and an equitable discursive framework for all. The study concludes mat such in-common, public service eutopias of musical and moral dimensions are still of value for subjects becoming rational, empathetic species beings. Such eutopias might even counter new media solipsism and any instrumentally driven calls for broadcast reform. Thesis word total: 79,929. Excludes indented quotations, footnotes, appendices, references and bibliography.
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Wehr, Kathryn Hannah. "Bible and theology at work : the creative energy of Dorothy L. Sayers' 'The Man Born to be King'." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/12083.
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This study centres on the biblical and theological work behind Dorothy L. Sayers' 12-part play-cycle, The Man Born to be King, aired on the BBC between 1941-42. Investigation begins by testing various unsubstantiated statements by biographers and scholars through a line-by-line analysis of the scripts, the results of which can be found in two large tables of information about how Sayers used each pericope in the Gospels (Appendix A) and a list of every known biblical reference within the play-cycle (Appendix C). Sayers' reported privileging of the Gospel of John gives way to evidence that Synoptic content outweighs Johannine by sheer bulk of material while preference is clearly given to stories that appear in both John and the Synoptics. Sayers' reported avoidance of the Authorized Version gives way to limited but consistent use of the AV for the narrator, for Old Testament quotations, and a special use of the Coverdale Psalms from the Book of Common Prayer. A study of Sayers' six secondary sources shows significant influence upon historic details and characterisation. By covering new ground through in-depth script and source analysis, these studies reveal, expand upon, and often contradict previous assumptions regarding Sayers' sources and working process. In the area of theological studies, investigation begins with Sayers' own claim that she had no original theology—that she merely re-stated the Church's teaching. First, Sayers' identity as an Anglo-Catholic is explored to understand what she means by ‘Catholic' and ‘the Church'. Having thus located Sayers within a particular tradition, Sayers' Christology (building upon her emphasis on the Creed) and Eschatology (building upon her chosen theme of the Kingship of Christ) within the plays are considered within their broader context of early twentieth-century Anglo-Catholic and wider theology. Sayers' theological originality is then proposed in relation to how she brought theology to life in dramatic form.
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Robbins, Anne. "Merging the cultures of health professionals, programme and drama production in the development of a health communication strategy : an ethnographic account of a case-study conducted in BBC local radio." Thesis, University of Leicester, 2000. http://hdl.handle.net/2381/30548.
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The initial part of this thesis is an exploration of the effectiveness of health education campaigns that utilise the mass media. Research evidence is drawn from the traditions of media effects, audience reception and health campaign development which has qualified the author's understanding of what mass media could achieve in the health domain. In Britain, the frustrations resulting from the limited success of mass media campaigns in health education have in recent years led some health educators away from conventional approaches to using the mass media to promote their health messages and towards more imaginative strategies. This thesis utilises one innovative project as a case study which has drawn on the knowledge from earlier failures and successes with mass media, and sought to incorporate best practice in an integrated media based health communication strategy. The development of a health alliance between four district health authorities in the West Midlands, and a BBC Local Radio station is the basis for the case study on which this research is based. This alliance led to the development of a media-based health communication strategy that incorporates models of media advocacy, education entertainment and social action broadcasting. This thesis is based on the implementation of the case study. Focusing on the implementation of the strategy enabled an exploration of the relationship interface of the three partners, drama production, programme production and health professionals; with each group exhibiting differing norms and values in terms of their perception of health and mode of operation. The empirical part of the thesis consists of an ethnographic account and analysis of the relationship interfaces with the three parties involved in the implementation of the health communication strategy, health, drama and programme production staff. The thesis concludes with a discussion of the research findings in the context of their relevance, for health promotion specialists, broadcasters and communication researchers, in seeking to affect the portrayal of health.
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Luneau-Galy, Aurélie. "La B. B. C. Et les Français : de l'écoute à l'action, 1940-1944." Bordeaux 3, 2002. http://www.theses.fr/2002BOR30028.
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Au-delà de l'affrontement militaire, la seconde guerre mondiale inaugura un nouveau champ de bataille, celui des ondes hertziennes, où la B. B. C. Se révéla une arme redoutable et un outil de propagande privilégié face à Radio-Paris, aux mains des Allemands, et à Radio-Vichy. Au lendemain de l'armistice, alors qu'en France les médias étaient contrôlées et les sources d'information cadenacées, les autorités britanniques et le général de Gaulle, chef des Français Libres, entendirent maintenir le lien avec la population française, la tenir informée et lui insuffler l'espoir en l'avenir. Deux équipes s'attelèrent à la tâche : celle dirigée par Jacques Duchesne, sous contrôle britannique, dont le programme "Les Français parlent aux Français" devint rapidement célèbre, et celle relevant du général de Gaulle dont le porte-parole, Maurice Schumann, prit les rênes de l'émission "Honneur et patrie". Formidable instrument de guerre des mots, grâce à ses bulletins de nouvelles, ses commentaires, ses slogans, ses sketches et ritournelles, Radio-Londres s'engagea aussi dans une guerre d'action. Parallèlement au travail des mouvements de résistance, elle orchestra ponctuellement et régulièrement des manifestations civiles en France (campagne des V, 1er mai,14 juillet, 11 novembre. . . ), cherchant à coaliser les sentiments d'hostilité des Français à l'égard de l'occupant et du gouvernement de Vichy, et à inciter les compatriotes à agir au côté des Alliés. De l'écoute à l'action,la B. B. C. Fut le vecteur d'une résistance civile, le fer de lance d'une contestation populaire en vue de la libération du pays.
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Van, Eecke Christophe. "Pandaemonium: Ken Russell's Artist Biographies as Baroque Performance." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/218962.
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Ken Russell (1927-2011) was a renegade talent and the self-styled enfant terrible of British cinema. His legacy as a film-maker consists of a large number of films on the lives of artists, mainly composers. But Russell’s approach to artist biography was highly unorthodox: rather than reconstruct a factual account he offered a deeply personal interpretation of artists’ lives based on his own understanding of their work. In a programmatic text for his film on Mahler (1974), Russell explained that his films ‘evolve through a stream of consciousness in which the man and the myth, the music and its meaning, time, place, dream and fact all flow and blend into the mainstream of the film itself’ and that ‘my film is simply about some of the things I feel when I think of Mahler’s life and listen to his music’.This book is an attempt to explain what that statement means and to unpack its implications for the practice of life writing. It takes a baroque approach to performance and performativity to show how Russell not simply made highly inventive films on other artists, but also constructed those films as a kind of self-portrait. Russell’s work then becomes a performance of self through art. In four chapters of detailed analysis this book reconstructs Russell’s method, from the very first films he made for the BBC in the early 1960s through his major feature films of the 1970s and 1980s.<br>Doctorat en Histoire, histoire de l'art et archéologie<br>info:eu-repo/semantics/nonPublished
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Mihoubi, Selma. "La stratégie d’implantation de Radio Chine Internationale en Afrique de l’Ouest : un ancrage local aux visées globales." Thesis, Sorbonne université, 2020. http://www.theses.fr/2020SORUL049.
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Depuis le début des années 2010, les relais FM de Radio Chine Internationale s’installent dans les grandes villes des pays d’Afrique de l’Ouest. Largement investie économiquement dans la région, la Chine veut également contrôler son image par le biais de l’influence médiatique. Mais difficile pour Radio Chine Internationale de s’imposer dans une zone où les radios internationales des anciennes puissances coloniales comme Radio France Internationale et British Broadcasting Corporation dominent encore aujourd’hui le paysage médiatique. La régionalisation des radios publiques internationales est utilisée par les États pour leur propre rayonnement au-delà des frontières politiques. Grâce à une diplomatie offensive et un ancrage territorial stratégique, RCI a réussi progressivement son implantation, pour participer aux ambitions globales du pouvoir communiste chinois : l'objectif étant le contrôle des opinions publiques africaines, pour faire entendre sa voix sur la scène internationale, au même titre que les partenaires traditionnels des pays ouest-africains<br>Since 2010, China Radio International’s FM relays stations were set up in big West African cities. China invested heavily in Sahelian countries development, and therefore needs to control its image using media influence. At first, China International Radio had a very hard time penetrating this region where international radios from former colonial powers as Radio France Internationale and British Broadcasting Corporation still pervade. Nations use international broadcasters’ regionalization beyond their political borders to work on their own global power of influence. CRI managed its implementation using a vibrant diplomacy and a strategic regional anchoring in order to serve the Communist Party of China. The main goal stands in the supervision of public opinion, to make its voice heard on the international stage the same way as West African countries’ traditional partners
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Vallée, Cécile. "La b. B. C. : outil de propagande gouvernementale pendant la Seconde Guerre mondiale." Rennes 2, 1995. http://www.theses.fr/1995REN20021.
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Pendant la seconde guerre mondiale, le gouvernement britannique a transformé la BBC en outil collaborateur de manière à assurer la diffusion de sa politique de propagande sur les ondes nationales. En utilisant la persuasion et la coercition, en installant aux postes-clefs de la BBC des hommes totalement acquis à leur cause, les autorités gouvernementales ont mis en place progressivement un contrôle serré des intervenants et du contenu des émissions. Le choix politique d'un contrôle caché a permis de sauvegarder aux yeux de la population britannique et aux yeux du monde, l'image démocratique d'indépendance de la BBC. En réalité cette dernière était totalement dépendante du ministère de l'information, centralisateur et organisateur de la propagande des différents ministères. Au nom de l'intérêt national et pour protéger son image de marque, l'outil radiophonique qu'était la BBC collabora activement à la mise en place de cette propagande. Le gouvernement utilisa les ondes à sa guise pour lancer de multiples campagnes de propagande de grande envergure, touchant tous les aspects de la quotidienne, visant à contrôler, à guider, à orienter, à corriger comportements, attitudes et opinions de manière à assurer en permanence une mise en place efficace de toutes ses mesures en matière d'effort de guerre pour mener le pays à la victoire. Par des techniques de persuasion, de moralisation, d'héroïsation, de mise en valeur systématique des Britanniques, combattants sur le front intérieur, comme de ses politiques, le gouvernement tentait en permanence de soutenir le moral de la population. C'est cet impératif de soutien au moral, au coeur de la propagande, qui conduisit la BBC à présenter sur les ondes un tableau idéalisé du front intérieur<br>During the Second World War, the British government transformed the BBC into a willing instrument of its propaganda. Through persuasion and pressure, by putting its own men in control of the corporation, it exercised a tight control over broadcast programmes and broadcasters. The secret nature of that control enabled both the government and the BBC to maintain the image of an independent BBC. In reality, the latter was totally dependent on the ministry of information, which centralised and planned all ministerial propaganda. In the name of national interest and in order to safeguard its image, the BBC co-operated actively with the government to put its propaganda into broadcast terms. The government used the waves freely and launched large propaganda campaigns dealing with all aspects of life on the home front. The aim was to guide and control the behaviour and attitude of the population as well as their opinions so as to ensure at all times that the war effort, as planned by the government, would be successful. Using persuasion and moralisation, constantly and repetitively stressing the qualities of the british people, the government's propaganda aimed to sustain the morale of the public. This led the BBC to broadcast an over-positive, idealised image of the home front, the listeners being encouraged to believe that they were heroes, and that it was thanks to their natural qualities of determination, of courage, and of generosity that they would win over nazism. The ideological basis of the propaganda aiming to reinforce patriotism and nationalism included essentially a continual debasement of the enemy, as well as a constant praise of the people and of a nation turned into a natural champion of all the great values of humanity
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Langeo, Gaëlle. "Jeunesse, culture, société en Grande-Bretagne 1978-2009 : l'exemple du "Hitchhiker's Guide to the Galaxy"." Thesis, Bordeaux 3, 2019. http://www.theses.fr/2019BOR30039.
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Cette recherche porte sur The Hitchhiker’s Guide to the Galaxy, une série de science-fiction humoristique britannique créée pour la BBC Radio 4 en 1978. Sur la période étudiée (1978 – 2009), la série a été déclinée sur tous les supports que peut offrir la culture de masse. Dans les premières années, la série trouve un écho important auprès des adolescents, des étudiants et des jeunes adultes. L’auteur de la série - Douglas Adams - a gardé la main sur toutes les incarnations de Hitchhiker’s. Au cours de sa vie, l’auteur de cette science-fiction qui veut faire rire a progressivement été qualifié de « gourou de la technologie » par la presse. Les grandes passions de Douglas Adams étaient effectivement au nombre de quatre : les ordinateurs, l’évolution des espèces, les Beatles et les Monty Pythons. Cette recherche s’attache donc à comprendre comme ces quatre éléments se sont articulés dans la vie de Douglas Adams, l’influence qu’ils ont eu sur Hitchhiker’s et ce que le succès de la série dit des évolutions de la société britannique. The Hitchhiker’s Guide to the Galaxy arrive à un moment où les attentes changent en matière de comédie, comme le montre l’essor de l’Alternative Comedy. La percée de Hitchhiker’s se déroule aussi dans un contexte où la technologie prend de l’importance dans la vie quotidienne et où la culture geek prend forme, à la croisée des mondes imaginaires et de l’informatique. Le retentissement de la série peut aussi se voir comme un témoignage de l’existence de ce que le sociologue Mike Savage a appelé la classe moyenne technique. Par ailleurs, en voulant créer un album de rock pour la radio, Douglas Adams a produit une fiction en adéquation avec l’univers sonore de la jeunesse des années 1970. La technologie du studio stimule la créativité, tout comme l’ordinateur personnel le fera dans les années 1980<br>This research focuses on The Hitchhiker’s Guide to the Galaxy, a British science-fiction comedy series created for BBC Radio 4 in 1978. Over the study period (1978-2009), the series was provided to the public in all possible formats that mass culture can offer. In its first years the series attracted a strong audience among teenagers, students and young adults. Douglas Adams, the series’ author, maintained control over all the incarnations of The Hitchhiker’s Guide to the Galaxy. Over the course of his life, the author of this science fiction series, made to make people laugh, gradually became known as a ‘‘technology guru” by the press. Indeed, Douglas Adams had four great passions : computers, evolution of species, the Beatles and the Pythons. Therefore, this research endeavours to understand how these four topics were expressed in Douglas Adams’ life, the influence they had on Hitchhiker’s and how this series’ success shows the evolution of British society. The Hitchhiker’s Guide to the Galaxy occurs at a time when expectations towards comedy were changing, as shown by the rise of Alternative Comedy. Hitchhiker’s breakthrough also takes place at a time when technology was gaining importance in daily life and geek culture was developing, at the crossroads of imaginary worlds and computer science. The series’ impact can also be considered as evidence of what the sociologist Mike Savage called the technical middle class. In addition, by creating a rock album for the radio, Douglas Adams created a fantasy consistent with the musical universe of the 1970s youth. The technology used in the radio studio stimulates creativity, just like the personal computer will do in the 1980s
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Boulos, Karen. "BBU-RRH Association Optimization in Cloud-Radio Access Networks." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS209/document.
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De nos jours, la demande en trafic mobile a considérablement augmenté. Face à cette croissance, plusieurs propositions font l'objet d'étude pour remédier à un tel défi. L’architecture des réseaux d’accès de type Cloud (C-RAN) est l’une des propositions pour faire face à cette demande croissante, et constitue une solution candidate potentielle pour les réseaux futurs 5G. L'architecture C-RAN dissocie deux éléments principaux de la station de base: La BBU ou ``Baseband Unit", qui constitue une unité intelligente pour le traitement des données en bande de base, et le RRH ou ``Remote Radio Head", constituant en une antenne passive pour fournir l'accès aux utilisateurs (UEs). Grâce à l’architecture C-RAN, les BBUs sont centralement regroupées, alors que les RRHs sont distribués sur plusieurs sites. Plusieurs avantages sont ainsi dérivés, tels que le gain en multiplexage statistique, l’efficacité d’utilisation des ressources, et l’économie de puissance. Contrairement à l’architecture conventionnelle où chaque RRH est exclusivement associé à une BBU, dans l’architecture C-RAN, plusieurs RRHs sont regroupés en une seule BBU lorsque les conditions de charge sont faibles. Ceci présente plusieurs avantages, tel que l’amélioration en efficacité énergétique et la minimisation en consommation de puissance. Dans cette thèse, nous adressons le problème d’optimisation des associations BBU-RRH. Nous nous intéressons à l’optimisation des regroupements des RRHs aux BBUs en tenant compte de critères multiples. Plusieurs contraintes sont ainsi envisagées, tel que la réduction de la consommation d'énergie sous garantie de Qualité de Service (QoS) minimale. En outre, la prise en compte du changement du niveau d’interférence en activant/désactivant les BBUs est primordiale pour l’amélioration de l’efficacité spectrale. En plus, décider dynamiquement de la réassociation des RRHs aux BBUs sous des conditions de charges variables représente un défi, vu que les UEs connectés aux RRHs changeant leurs associations font face à des ``handovers" (HOs)<br>The demand on mobile traffic has been largely increasing nowadays. Facing such growth, several propositions are being studied to cope with this challenge. Cloud-Radio Access Networks Architecture (C-RAN) is one of the proposed solutions to address the increased demand, and is a potential candidate for future 5G networks. The C-RAN architecture dissociates two main elements composing the base station: The Baseband Unit (BBU), consisting in an intelligent element to perform baseband tasks functionalities, and the Remote Radio Head (RRH), that consists in a passive antenna element to provide access for serviced User Equipments (UEs). In C-RAN architecture, the BBUs migrate to a Cloud data center, while RRHs remain distributed across multiple sites. Several advantages are derived, such as statistical multiplexing gain, efficiency in resource utilization and power saving. Contrarily to conventional architecture, where each RRH is associated to one BBU, in C-RAN architecture, multiple RRHs can be embraced by one single BBU when network load conditions are low, bringing along several benefits, such as enhanced energy efficiency, and power consumption minimization. In this thesis, the BBU-RRH association optimization problem is addressed. Our aim is to optimize the BBU-RRH association schemes, taking into consideration several criteria. The problem presents many constraints: For example, achieving minimized power consumption while guaranteeing a minimum level of Quality of Service (QoS) is a challenging task. Further, taking into account the interference level variation while turning ON/OFF BBUs is paramount to achieve enhanced spectral efficiency. Moreover, deciding how to re-associate RRHs to BBUs under dynamic load conditions is also a challenge, since connected UEs face handovers (HOs) when RRHs change their associations
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Duan, Jialong. "Coordination inside centralized radio access networks with limited fronthaul capacity." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2017. http://www.theses.fr/2017IMTA0052/document.
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Le réseau d'accès radio centralisé (C-RAN) peut fortement augmenter la capacité des réseaux mobiles. Cependant, la faisabilité de C-RAN est limitée par le débit considérable engendré sur les liaisons de transport, appelées également fronthaul. L'objectif de cette thèse est d'améliorer les performances de C-RAN tout en considérant les limitations du débit sur le frontaul, l'allocation de ressources et l'ordonnancement des utilisateurs.Nous étudions d'abord les séparations fonctionnelles possibles entre les têtes radios distantes (RRH) et les unités de traitement en bande de base (BBU) sur la liaison montante pour réduire le débit de transmission sur le fronthaul : certaines fonctions de couche basse sont déplacées du BBU vers les RRH. Nous fournissons une analyse quantitative des améliorations de performances ainsi obtenues.Nous nous concentrons ensuite sur la transmission coordonnée Multi-point (CoMP) sur le lien descendant. CoMP peut améliorer l'efficacité spectrale mais nécessite une coordination inter-cellule, ce qui est possible uniquement si une capacité fronthaul élevée est disponible. Nous comparons des stratégies de transmission avec et sans coordination inter-cellule. Les résultats de simulation montrent que CoMP doit être préféré pour les utilisateurs situés en bordure de cellule et lorsque la capacité du fronthaul est élevée. Nous en déduisons une stratégie hybride pour laquelle Les utilisateurs sont divisés en deux sous-ensembles en fonction de la puissance du signal. Les utilisateurs situés dans les zones centrales sont servis par un seul RRH avec une coordination simple et ceux en bordure de cellule sont servis en mode CoMP. Cette stratégie hybride constitue un bon compromis entre les débits offerts aux utilisateurs et les débits sur le fronthaul<br>Centralized/Cloud Radio Access Network (C-RAN) is a promising mobile network architecture, which can potentially increase the capacity of mobile networks while reducing operators¿ cost and energy consumption. However, the feasibility of C-RAN is limited by the large bit rate requirement in the fronthaul. The objective of this thesis is to improve C-RAN performance while considering fronthaul throughput reduction, fronthaul capacity allocation and users scheduling.We first investigate new functional split architectures between Remote Radio Heads (RRHs) and Baseband Units (BBU) on the uplink to reduce the transmission throughput in fronthaul. Some low layer functions are moved from the BBU to RRHs and a quantitative analysis is provided to illustrate the performance gains. We then focus on Coordinated Multi-point (CoMP) transmissions on the downlink. CoMP can improve spectral efficiency but needs tight coordination between different cells, which is facilitated by C-RAN only if high fronthaul capacity is available. We compare different transmission strategies without and with multi-cell coordination. Simulation results show that CoMP should be preferred for users located in cell edge areas and when fronthaul capacity is high. We propose a hybrid transmission strategy where users are divided into two parts based on statistical Channel State Informations (CSIs). The users located in cell center areas are served by one transmission point with simple coordinated scheduling and those located in cell edge areas are served with CoMP joint transmission. This proposed hybrid transmission strategy offers a good trade-off between users¿ transmission rates and fronthaul capacity cost
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Ben, slimen Yosra. "Knowledge extraction from huge volume of heterogeneous data for an automated radio network management." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE2046.
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En vue d’aider les opérateurs mobiles avec la gestion de leurs réseaux d’accès radio, trois modèles sont proposés. Le premier modèle est une approche supervisée pour une prévention des anomalies. Son objectif est de détecter les dysfonctionnements futurs d’un ensemble de cellules en observant les indicateurs clés de performance considérés comme des données fonctionnelles. Par conséquent, en alertant les ingénieurs et les réseaux auto-organisés, les opérateurs mobiles peuvent être sauvés d’une dégradation de performance de leurs réseaux. Le modèle a prouvé son efficacité avec une application sur données réelles qui vise à détecter la dégradation de capacité, les problèmes d’accessibilités et les coupures d’appel dans des réseaux LTE.A cause de la diversité des technologies mobiles, le volume de données qui doivent être quotidiennement observées par les opérateurs mobiles devient énorme. Ce grand volume a devenu un obstacle pour la gestion des réseaux mobiles. Le second modèle vise à fournir une représentation simplifiée des indicateurs clés de performance pour une analyse plus facile. Du coup, un modèle de classification croisée pour données fonctionnelles est proposé. L’algorithme est basé sur un modèle de blocs latents dont chaque courbe est identifiée par ses composantes principales fonctionnelles. Ces dernières sont modélisées par une distribution Gaussienne dont les paramètres sont spécifiques à chaque bloc. Les paramètres sont estimés par un algorithme EM stochastique avec un échantillonnage de Gibbs. Ce modèle est le premier modèle de classification croisée pour données fonctionnelles et il a prouvé son efficacité sur des données simulées et aussi sur une application réelle qui vise à aider dans l’optimisation de la topologie des réseaux mobiles 4G.Le troisième modèle vise à résumer l’information issue des indicateurs clés de performance et aussi des alarmes réseaux. Un modèle de classification croisée des données mixtes : fonctionnelles et binaires est alors proposé. L’approche est basé sur un modèle de blocs latents et trois algorithmes sont comparés pour son inférence : EM stochastique avec un échantillonneur de Gibbs, EM de classification et EM variationnelle. Le modèle proposé est le premier algorithme de classification croisée pour données fonctionnelles et binaires. Il a prouvé son efficacité sur des données simulées et sur des données réelles extraites à partir de plusieurs réseaux mobiles 4G<br>In order to help the mobile operators with the management of their radio access networks, three models are proposed. The first model is a supervised approach for mobile anomalies prevention. Its objective is to detect future malfunctions of a set of cells, by only observing key performance indicators (KPIs) that are considered as functional data. Thus, by alerting the engineers as well as self-organizing networks, mobile operators can be saved from a certain performance degradation. The model has proven its efficiency with an application on real data that aims to detect capacity degradation, accessibility and call drops anomalies for LTE networks.Due to the diversity of mobile network technologies, the volume of data that has to be observed by mobile operators in a daily basis became enormous. This huge volume became an obstacle to mobile networks management. The second model aims to provide a simplified representation of KPIs for an easier analysis. Hence, a model-based co-clustering algorithm for functional data is proposed. The algorithm relies on the latent block model in which each curve is identified by its functional principal components that are modeled by a multivariate Gaussian distribution whose parameters are block-specific. These latter are estimated by a stochastic EM algorithm embedding a Gibbs sampling. This model is the first co-clustering approach for functional data and it has proven its efficiency on simulated data and on a real data application that helps to optimize the topology of 4G mobile networks.The third model aims to resume the information of data issued from KPIs and also alarms. A model-based co-clustering algorithm for mixed data, functional and binary, is therefore proposed. The approach relies on the latent block model, and three algorithms are compared for its inference: stochastic EM within Gibbs sampling, classification EM and variational EM. The proposed model is the first co-clustering algorithm for mixed data that deals with functional and binary features. It has proven its efficiency on simulated data and on real data extracted from live 4G mobile networks
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Grundberg, Staffan. "Radio Netwok Test Configuration for Maximum Test Coverage : Model based load generation in system verification of a GSM Base Station Controller." Thesis, Linköpings universitet, Kommunikationssystem, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-82023.
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GSM has been developed during more than a decade and has grown to a very complex system. Due to the wide range of functionality, the high capacity and the complexity of the BSC the testing of stability and performance is time consuming. A simulator is needed for these tests as live networks are not available at this stage in the development process. The performance and stability need to be verified for each new release of functionality. This thesis describes a conceptual model of a GSM network. The conceptual model can be used to configure a simulated radio network and to communicate what is simulated on a conceptual level rather than a detailed level. The model presented consists of several sub models. The subscriber model describes the actions and movement of subscribers; the cell model describes the radio conditions experienced by a subscriber moving within one cell; and the cell network model describes the geographical and structural properties of the network. Together the models are used to compose scenarios with the aim to describe varying radio conditions, varying subscriber behavior and varying cell structures. The aim is that different features of the Ericsson base station controller shall be used in the different scenarios. The scenarios represent different parts of a radio network connected to the same base station controller.
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Carter, Knute Derek. "Best-subset model selection based on multitudinal assessments of likelihood improvements." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/5726.
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Given a set of potential explanatory variables, one model selection approach is to select the best model, according to some criterion, from among the collection of models defined by all possible subsets of the explanatory variables. A popular procedure that has been used in this setting is to select the model that results in the smallest value of the Akaike information criterion (AIC). One drawback in using the AIC is that it can lead to the frequent selection of overspecified models. This can be problematic if the researcher wishes to assert, with some level of certainty, the necessity of any given variable that has been selected.
This thesis develops a model selection procedure that allows the researcher to nominate, a priori, the probability at which overspecified models will be selected from among all possible subsets. The procedure seeks to determine if the inclusion of each candidate variable results in a sufficiently improved fitting term, and hence is referred to as the SIFT procedure. In order to determine whether there is sufficient evidence to retain a candidate variable or not, a set of threshold values are computed. Two procedures are proposed: a naive method based on a set of restrictive assumptions; and an empirical permutation-based method.
Graphical tools have also been developed to be used in conjunction with the SIFT procedure. The graphical representation of the SIFT procedure clarifies the process being undertaken. Using these tools can also assist researchers in developing a deeper understanding of the data they are analyzing.
The naive and empirical SIFT methods are investigated by way of simulation under a range of conditions within the standard linear model framework. The performance of the SIFT methodology is compared with model selection by minimum AIC; minimum Bayesian Information Criterion (BIC); and backward elimination based on p-values. The SIFT procedure is found to behave as designed—asymptotically selecting those variables that characterize the underlying data generating mechanism, while limiting the selection of false or spurious variables to the desired level.
The SIFT methodology offers researchers a promising new approach to model selection, whereby they are now able to control the probability of selecting an overspecified model to a level that best suits their needs.
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Dewhirst, Guy Edward. "The electronic chain and the performance of the CMS electromagnetic calorimeter and the discovery reach of radion → hh → γγbbâ»." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421758.
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Selmi, Ikhlas. "Optimisation de l'infrastructure d'un système de positionnement indoor à base de transmetteurs GNSS." Phd thesis, Institut National des Télécommunications, 2013. http://tel.archives-ouvertes.fr/tel-00919772.
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Dans le but de fournir un service GNSS (Global Navigation Satellite System) de localisation continu et disponible partout, les systèmes utilisant des pseudolites et des répéteurs semblent être des solutions pertinentes pour la localisation en indoor. Le système à répélites, inspiré de ces deux méthodes (répéteurs et pseudolites), est aussi proposé pour résoudre cette problématique. Les répélites sont des transmetteurs locaux qui, installés en intérieur, formeront une constellation locale. Ils émettent tous un signal GNSS unique mais déphasé par un délai spécifique à chacun d'eux. Ces délais sont nécessaires pour distinguer les différents signaux reçus au niveau du récepteur. Les travaux de cette thèses sont réalisés dans le cadre du système à répélites et dans l'objectif d'améliorer son architecture et de réduire ses interférences inter-système. En effet, l'architecture du système (un peu encombrante) et les interférences éventuelles avec les signaux satellitaires reçus par un récepteur placé à l'extérieur font partie des inconvénients de ce système. On cherche donc à traiter ces deux difficultés de façon à minimiser leurs effets. Dans une première partie, on étudie les différents codes GNSS existants dans la littérature ainsi que les techniques de modulation employées. Ceci nous mène à proposer des codes ayant un niveau d'interférence équivalent à la référence GPS (obtenue entre deux codes GPS) pour les bandes L1 de GPS et G1 de Glonass. Dans une seconde étape, on développe la modulation IMBOC (Indoor Modified Binary Offset Carrier) pour générer de nouveaux codes caractérisés par des niveaux d'interférence réduits (comparés à la référence GPS). Parmi ces codes il y a deux catégories : ceux qui sont adaptés aux systèmes à répélites (émettant un code unique) et ceux qui sont adaptés aux systèmes pseudolites. Une étude théorique et des simulations des niveaux d'interférences pour les codes émis dans la bande GPS et Glonass sont réalisées pour déterminer les gains en termes de niveaux de bruit. Ce gain (par rapport à la référence GPS) en puissance d'interférence s'élève à 16 dB pour Glonass et 20 dB pour GPS. Pour valider les performances de ces codes, on génère les signaux IMBOC et on observe les interférences réelles qu'ils induisent sur un récepteur GPS recevant un signal satellitaire. Dans la deuxième partie, on utilise la fibre optique pour transmettre le signal du générateur jusqu'aux répélites et pour créer les délais initiaux par propagation du signal dans des bobines de fibre. Ainsi on remplace les câbles coaxiaux et les montages électroniques (de déphasage) par des bobines de fibres plus légères, facile à installer et à faible perte de puissance. Il reste cependant à évaluer avec une précision centimétrique les délais réels induits sur chaque signal dans le but de garantir une précision de localisation inférieure au mètre. Cette précision semble en effet représenter un bon compromis entre complexité globale du système de localisation et réponse à un ensemble suffisant de besoins des utilisateurs potentiels. On développe alors une technique d'estimation des délais basée sur la mesure de déphasage (entre deux signaux sinusoïdaux) et une analyse statistique des séries de mesures. Pour finir, on présente quelques résultats de localisation obtenus avec notre système à répélites déployé dans un environnement indoor typique
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Selmi, Ikhlas. "Optimisation de l'infrastructure d'un système de positionnement indoor à base de transmetteurs GNSS." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2013. http://www.theses.fr/2013TELE0024.
Full textAbstract:
Dans le but de fournir un service GNSS (Global Navigation Satellite System) de localisation continu et disponible partout, les systèmes utilisant des pseudolites et des répéteurs semblent être des solutions pertinentes pour la localisation en indoor. Le système à répélites, inspiré de ces deux méthodes (répéteurs et pseudolites), est aussi proposé pour résoudre cette problématique. Les répélites sont des transmetteurs locaux qui, installés en intérieur, formeront une constellation locale. Ils émettent tous un signal GNSS unique mais déphasé par un délai spécifique à chacun d’eux. Ces délais sont nécessaires pour distinguer les différents signaux reçus au niveau du récepteur. Les travaux de cette thèses sont réalisés dans le cadre du système à répélites et dans l’objectif d’améliorer son architecture et de réduire ses interférences inter-système. En effet, l’architecture du système (un peu encombrante) et les interférences éventuelles avec les signaux satellitaires reçus par un récepteur placé à l’extérieur font partie des inconvénients de ce système. On cherche donc à traiter ces deux difficultés de façon à minimiser leurs effets. Dans une première partie, on étudie les différents codes GNSS existants dans la littérature ainsi que les techniques de modulation employées. Ceci nous mène à proposer des codes ayant un niveau d’interférence équivalent à la référence GPS (obtenue entre deux codes GPS) pour les bandes L1 de GPS et G1 de Glonass. Dans une seconde étape, on développe la modulation IMBOC (Indoor Modified Binary Offset Carrier) pour générer de nouveaux codes caractérisés par des niveaux d’interférence réduits (comparés à la référence GPS). Parmi ces codes il y a deux catégories : ceux qui sont adaptés aux systèmes à répélites (émettant un code unique) et ceux qui sont adaptés aux systèmes pseudolites. Une étude théorique et des simulations des niveaux d’interférences pour les codes émis dans la bande GPS et Glonass sont réalisées pour déterminer les gains en termes de niveaux de bruit. Ce gain (par rapport à la référence GPS) en puissance d’interférence s’élève à 16 dB pour Glonass et 20 dB pour GPS. Pour valider les performances de ces codes, on génère les signaux IMBOC et on observe les interférences réelles qu’ils induisent sur un récepteur GPS recevant un signal satellitaire. Dans la deuxième partie, on utilise la fibre optique pour transmettre le signal du générateur jusqu’aux répélites et pour créer les délais initiaux par propagation du signal dans des bobines de fibre. Ainsi on remplace les câbles coaxiaux et les montages électroniques (de déphasage) par des bobines de fibres plus légères, facile à installer et à faible perte de puissance. Il reste cependant à évaluer avec une précision centimétrique les délais réels induits sur chaque signal dans le but de garantir une précision de localisation inférieure au mètre. Cette précision semble en effet représenter un bon compromis entre complexité globale du système de localisation et réponse à un ensemble suffisant de besoins des utilisateurs potentiels. On développe alors une technique d’estimation des délais basée sur la mesure de déphasage (entre deux signaux sinusoïdaux) et une analyse statistique des séries de mesures. Pour finir, on présente quelques résultats de localisation obtenus avec notre système à répélites déployé dans un environnement indoor typique<br>In order to make the GNSS positioning service continuous and available when going from an outdoor to an indoor environment, pseudolite and repeater based systems have been developed. A new system called repealite is a combination of both pseudolites and repeaters. It is based on transmitting a single signal through a set of transmitters (thus creating the local constellation). In order to avoid interference between the repealite signals and to distinguish between them at the receiver’s end, each signal is shifted with a specific delay. The research carried out in this PhD aims at optimizing two aspects of the repealite based system. Firstly, we need to mitigate the effect of the interference caused on the satellite signals received outdoors. So we decided to design new codes characterized by low interference levels with outdoor signals. Secondly, we worked on the infrastructure part in order to simplify it and to make it easier to install: this is mainly achieved through the use of optical fibers. In the first part, we study the codes and the modulation techniques currently used in the GNSS systems. Then, we propose a few codes having an interference level equivalent to that of the GPS (obtained when computing two GPS codes). These new codes are compatible with the GPS L1 or the Glonass G1 bands. In a second step, we focus on the modulation techniques and create the so-called IMBOC (Indoor Modified Binary Offset Carrier) that aims at minimizing the interference levels with outdoor signals. With this modulation, we propose new IMBOC codes capable of much lower interference levels than the GPS reference. In order to evaluate the performance of the proposed codes, we carried out a theoretical study, simulations and experimental tests. The interference gain reached about 20 dB on the GPS band and 16 dB on the Glonass one. The proposed codes are divided into two categories: those reserved to the repealite system (using a single code) and families of codes suited to pseudolite–based systems. Finally, we generated the IMBOC signals modulated by the new codes and tested the real interference induced on an outdoor receiver tracking the satellite signals. In the second part, we use optical fibers in order to replace the coaxial cables used to transmit signals from the GNSS-like signal generator to the repealites. In addition, the initial delay needed for each repealite is added by propagating the signals through rolls of fibers. Indeed, optical fiber offers advantages such as lightness, flexibility and low power loss that make it suitable to simplify the infrastructure of the system. In order to evaluate the real delays of these various fibers, we develop an estimating method based on phase shift measurements (between two sinusoidal signals) and statistical analysis of the series of measurements. This method should have uncertainties lower than one centimeter in order to insure a sub-meter precision (in absolute positioning with the repealite positioning system). In order to validate this method, we compare it to a GNSS based calibration approach. Finally, we carry out a few positioning tests with the repealite positioning system deployed in a typical indoor environment. These tests deal with absolute and relative positioning and give an idea about the system’s performance
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Mallqui, Morales Nayda Isabel. "Diseño de migración de nodos B aplicado para una RNC caida de una red movil." Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/1276.
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La presente tesina consiste en el diseño de migración de nodos B aplicado para una RNC caída de una red móvil, con la finalidad de solucionar los problemas que se presenten ante un incidente que afecte los servicios de voz y datos de los usurarios de una red móvil.
En el desarrollo de la tesina, se describe el planteamiento del problema, el marco teórico de la tecnología UMTS y posteriormente nos centramos en los elementos principales de esta tecnología. También describimos los equipos importantes a utilizar en desarrollo del proyecto, en este caso nos enfocamos en la descripción de la RNC. Y finalmente describimos el desarrollo del proyecto, el diseño de la solución e implementación de la misma, y en donde se presentan los resultados del diseño.
This thesis is the design of migration of nodes B and its a applied when RNC fall for a mobile network, in order to solve the problems that arise before an incident affecting voice and data services from a mobile network.
In developing the thesis, we describe the theoretical framework of UMTS technology and then we focus on the main elements of this technology. We also describe the important equipment used in project development; in this case we focus on the description of the RNC. And finally we describe the solution of design and implementation .Also, the results of this project.
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Sparta', Roberta. "Indirect 2H(d,p)3H and 2H(d,n)3He fusion reactions measurement at energies relevant for Big Bang Nucleosynthesis." Doctoral thesis, Università di Catania, 2013. http://hdl.handle.net/10761/1429.
Full textAbstract:
The work presented in this thesis is focused on the experimental study of the two deuterium burning channels 2H(d,p)3H and 2H(d,n)3He in the Big Bang Nucleosynthesis (BBN) astrophysical scenario.
In the beginning is presented this phase of the early universe and why the BBN model is still fine tuned with new results coming from observations and laboratory measurements. This model (if BBN is considered standard) can be adjusted such to have only a free parameter, the baryon to photon ratio of the universe eta at a certain time. Also the WMAP satellite results have been of great help to fix eta (and then all the others BBN numbers), but still persist some discrepancies, as for the lithium primordial abundances, between what is theoretically predicted and what is observed. The deuterium (and the reactions in which is involved) plays a key role in the evaluation of eta, thus for all BBN, so that is called the best baryometer.
Then is explained that the need of new cross sections (and reaction rates) measurements for astrophysics can not be satisfied. This is because of the problems given by their measurements in the laboratory, as the presence of Coulomb barrier (that makes cross sections exponentially decrease in the energy range of interest) and the electron screening effect.
For all these reasons the present measurements have been performed through the Trojan Horse Method (THM), an indirect method that allow to have a bare-nucleus cross section of the two-body reaction of astrophysical interest that is free of the Coulomb suppression. This is accomplished via the selection of the quasi-free mechanism in an appropriate three-body reaction, whose center-of-mass energy is greater than the Coulomb barrier.
Two experimental runs have been carried out at the Nuclear Physics Institute of the Academy of Science of Czech Republic, in Rez (Prague). In the first one, with a 17 MeV 3He beam (in which only 2H(d,p)3H has been measured) the presence of quasi-free mechanism events has been ascertained. The result obtained is fair but not good enough for the error reduction needed for astrophysics. Instead, to optimize the result in the region relecant for astrophysics, a the second run (where the 3He beam energy was 18 MeV) has been performed. In particular for the first time the technique of measuring one of the two-body reactions participant ejectile and the spectator particle, in this case a proton, instead of both the ejectiles. This has also allowed the measure of the 2H(d,n)3He reaction without the complexity of the neutron detection, so with a very good precision. All the off-line analysis done until the S-factor extraction is detailed explained, including the MPWBA analysis by Dr. S. Typel. Also the screening potential has been evaluated, obtaining a value of 13.2±1.8 eV for 2H(d,p)3H and 11.7±1.6 eV for 2H(d,n)3He, very close to the adiabatic limit, as expected. A pole invariance test has been provided comparing present results with previous TH data, where the 6Li was used as TH nucleus.
Reaction rates from present TH data for the two d+d channels, and from TH cross section of 3He(d,p)4He and 7Li(p,a)4He have been calculated. The new rates have been also compared with previous direct data compilations and with a new updated one that exclude questionable data sets. Using these new TH rates as input for the BBN code developed by prof. Bertulani, with eta fixed at the WMAP value, the primordial abundances have been obtained. These results are coherent with the whole model and will be soon compared with the observational results: a further analysis will provide stronger constraints on the values and a reduction of the involved uncertainties. This result reasserts that THM is a powerful tool for nuclear astrophysics and gives further validation to the BBN model.
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Bibi, Nargis. "Mitigating the effect of soft-limiting for OFDM peak reduction." Thesis, University of Manchester, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618002.
Full textAbstract:
Digital communication systems which use Orthogonal Frequency Division Multiplexing (OFDM) are now widely used and have many advantages. The main disadvantage is the requirement for highly linear analogue electronics including the high power amplifier (HPA). This requirement cannot be met in all circumstances because of the occurrence of symbols with high peak to average power ratio (PAPR). Such symbols may be non-linearly distorted by limiting. Approaches to solve this problem have been either to reduce the PAPR at the transmitter or to try to mitigate the effect of the non-linearity at the receiver. Soft-limiting, i.e. applying limiting in software prior to the HPA is a simple way to reduce the PAPR. It produces non-linear distortion which will cause an increase in the bit-error-rate (BER) at the receiver. This thesis surveys existing alternatives ways of reducing the effect of non-linearity and proposes some new ones. Two iterative receiver techniques, based on statistical analysis of the nature of the non-linearity, have been implemented and investigated. These are the ‘Bussgang Noise Cancellation’ (BNC) technique and the ‘Decision Aided Reconstruction’ (DAR) techniques. As these techniques are valid for any memory-less nonlinearity, an alternative form of limiting, named as Inverted-Wraparound (IWRAP) has been included in the BNC investigation. A new method is proposed which is capable of correcting the received time-domain samples that are clipped, once they have been identified. This is named the ‘Equation-Method’ and it works by identifying constellation symbols that are likely to be correct at the receiver. If there are a sufficient number of these and they are correctly identified, the FFT may be partitioned to produce a set of equations that may be solved for the clipped time-domain samples. The thesis proposes four enhancements to this new method which improve its effectiveness. It is shown that the best form of this method outperforms conventional techniques especially for severe clipping levels. The performance of these four enhancements is evaluated over channels with additive white Gaussian noise (AWGN) in addition to clipping distortion. A technique based on a ‘margin factor’ is designed to make these methods work more effectively in the presence of AWGN noise. A new combining algorithm referred as ‘HARQ for Clipping’ is presented where soft bit decisions are combined from multiple transmissions. ‘HARQ for Clipping’ has been combined with the best version of the Equation-Method, and the performance of this approach is evaluated in terms of the BER with different levels of AWGN. It has been compared to other approaches from the literature and was found to out-perform the BNC iterative receiver by 3dB at signal to noise ratios around 10dB. Without HARQ, the best version of the Equation-Method performs better than the BNC receiver, at signal-to-nose ratios above about 17dB.