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1
Simmons, Matthew R. "Telecommunications technology and service changes since the Telecommunications Act of 1996." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FSimmons%5FMatt.pdf.
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Quast, Troy Clarence. "The Telecommunications Act of 1996 and Medicaid health maintenance organizations." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0014440.
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Parvaz, Dorothy. "Media Monopoly, the Telecommunications Act of 1996 and the Journalist's Responsibility." Thesis, The University of Arizona, 1997. http://hdl.handle.net/10150/292260.
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Haimowitz, Bruce Raymond. "The Telecommunications Act of 1996 : business access, and implications for integrated carriers." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42607.
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Glowacki, Jason P. "Impact of the Telecommunications Act of 1996 and spectrum allocation on cellular telephone technology." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FGlowacki.pdf.
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Lee, Chang Hee. "The competitive effects of RBOC interLATA entry on local telephone markets." Columbus, Ohio : Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1078943781.
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Thesis (Ph. D.)--Ohio State University, 2004.Title from first page of PDF file. Document formatted into pages; contains xiii, 274 p.; also includes graphics (some col). Includes abstract and vita. Advisor: Douglas N. Jones, Dept. of Public Policy and Management. Includes bibliographical references (p. 275-317).
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Alarcon, Richard Alfred. "An assessment of the impact of the European single market act on the United States' telecommunications industry and market." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/29786.
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Jackson, Penny M. "The effects of the FCC's 2003 revision of the 1996 Telecommunications Act on media ownership groups and voice diversity." Honors in the Major Thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1033.
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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.Bachelors
Sciences
Radio and TV; Broadcast Journalism
9
Webb, Rebecca. "Diminished Democracy? Portland Radio News/Public Affairs After the Telecom Act of 1996." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/157.
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News and public affairs on commercial radio dramatically changed following the 1996 Telecom Act, with rapid consolidation and economic efficiencies radically shrinking commercial radio's role in the provision of political information. By examining jobs data, public files, and the views of broadcast journalists, this project assesses the Act's impact through the lens of civic-minded Portland, Oregon. Because political information enables democracy, and because of radio's uniquely accessible qualities, this paper argues that market emphasis in media policy--especially in the Act's absolute manifestation--has diminished a significant channel of public discourse. Noticing radio's democratic potential, still relevant in the digital age, this work offers support for a revival of discursive opportunities on local commercial radio.
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Spencer, Logan Lemuella C. "Changing from the silo model to the horizontal layers model in public policy regulations : the implications and potential for the telecommunications industry /." Thesis, Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-11282005-192311/.
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Suwannoi, Paisan, and mikewood@deakin edu au. "Telecommunication technology and the professional development of teachers : challenge and opportunity." Deakin University. School of Social and Cultural Studies in Education, 2000. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20060713.104559.
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The thesis explores an effective model for using the internet in a distance training program for secondary school teachers. The professional development program, the dissertation, titled The Virtual University: Professional development for teachers, was initiated based on aspects of telecommunication technology and the professional development for Thai school teachers. The question of this program was How could information technology be used in developing an appropriate professional development model for Thai teachers?
Prior to the project, the four research studies were conducted to formulate the related base line information and supported framework for the program development. The four researches are: (1) Telecommunication Technology in Thai Schools, (2) The Role of University on Science Teachers Development, (3) Computer Education Curriculum for Student Teachers: Theory and Practice, and (4) Teachers Perceptions of the Academic Link Project Between Schools and Universities for Teacher Professional Development. The first research study provides the information about the necessary basic factors for change in Thai secondary schools and the new insights and understandings about change in Thai schooling.
The major findings were the understandings about teachers need for professional development, the available support in Thai school for professional development, and the limitations of professional development of teachers. The second research study provides the information about the roles of university faculty on initiation and operation of science teacher development programs, science teaching and learning resources centers, science instructional media design and production services, science teaching clinics, and science teachers associations. The third research study provides the conceptual framework for both preservice and inservice curriculum development program for teacher development. The last research study provides a base of descriptive information about the perspectives of school teachers towards the academic link project between schools and universities and the partnership which can assist in its establishment. The findings of these four research tasks were used for the formation of the framework of the dissertation. The EDNET Project, an example of teachers professional development through the information technology based training, was developed and implemented with ten school teachers in Khon Kaen.
12
Bourk, Michael J., and n/a. "A Narrative analysis of Australian telecommunications policy development with particular reference to the universal service obligation." University of Canberra. Communication, 2003. http://erl.canberra.edu.au./public/adt-AUC20050331.101440.
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This thesis analyses narratives associated with the development of public policy
in telecommunications from the advent of telegraphy to Australia in 1854 to the
end of 2000, with particular emphasis on concepts of universal service.
The history of public policy development in telecommunications universal service
obligations is analysed to gain an understanding of how different narratives are
used to frame policy within particular material contexts. The study demonstrates
that narratives in telecommunication development reflect national public policy
agendas. In addition the thesis analyses how policy narratives are used to
underwrite and legitimise assumptions, values and statements that influence the
agendas and expectations of diverse social actors and interpretive communities.
Furthermore, the thesis examines the interaction between policy narratives and
the barriers and opportunities created by dynamic material environments such
as economic, legislative and technological arenas.
The study analyses five narratives that influence telecommunication policy and
the agendas and expectations of diverse social actors and interpretive
communities. National development, technocratic, rights, competition and charity
narratives are used to frame different approaches to telecommunication policy,
with particular reference to universal service. The study demonstrates how
national development and competition narratives compete to dominate policy.
Furthermore, diverse technocratic narratives provide scientific reinforcement to
underwrite and legitimise the dominant narrative as well as discredit alternative
perspectives. In addition, social rights and charity narratives respectively provide
moral support to underwrite and legitimise national development and competition
policy narratives.
A key focus of this study is a narrative analysis of more than a thousand
submissions to an independent inquiry in 2000 into telecommunication service
levels with particular reference to universal service. The Telecommunications
Service Inquiry was a forum that provided examples of the narratives analysed
in this study from a cross-section of the Australian community. Submissions
came from diverse social actors and institutions that included governments and
state bodies, the telecommunication industry, unions, the farming industry, other
business groups, community groups and individuals.
The research demonstrates that changes in material environments and social
expectations of universal service produce tensions within dominant narratives
that require greater support from secondary narratives to provide scientific and
moral legitimacy. Furthermore the research indicates that, in part, universal
service policy functions to stabilise and legitimise the dominant policy narrative.
However, the diverse social expectations associated with universal service
produce continuing tensions within the dominant narrative that keep the policy in
a state of flux. Consequently, government and industry policy makers find
telecommunications policy a problematic area to reconcile with expectations of
universal service.
13
Shippen, Kaly Gillette. "Customer Acquisition Training for ACN Independent Representatives." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1155.pdf.
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Richards, Tanya Krystine. "Legal regulations of internet services providers." Thesis, Queensland University of Technology, 2001. https://eprints.qut.edu.au/36871/1/36871_Richards_2001.pdf.
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The objective of this thesis work is to establish the legal regulations of Internet service providers and establish that there is in fact a body of regulations in existence now for their regulation. While at this time there is feeling in the marketplace that there is insufficient legal regulation of Internet service providers, this thesis has uncovered an existing statutory regime of regulations and obligations. In addition to this existing statutory regime there is further emerging regulations and obligations currently in progress and it can be expected that it will continue to emerge with the industry emergency.
Form a commercial perspective it has been shown that the telecommunications, information technology, communications and entertainment industries are converging with the Internet as a mutual channel for delivery of their existing services. This emergence of a merged industry places the Internet service provider in an interesting position from a regulatory perspective. The Internet service provider is in fact regulated not only by a number of legislative pieces, but also by a number oflegislative bodies.
The term Internet service provider is not an easily defined term. The legal definition is found in the legislation based upon the commercial decisions that the Internet service provider makes, and the term itself is only used in the Broadcasting Services Act. The definition from a layperson point of view is less defined and in many instances does not contain significant correlation with the laypersons expectation of the definition of the term. The life span of the term Internet service provider is questionable. It is difficult to ascertain how long the term will be in common use with the rapid emergence of technology, and if it is still in common usage, if it will have the same meaning as it does at the time of this thesis.
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Frean, Isobel. "Modelling communication requirements in aged care using HL7 V3 methods." Access electronically, 2006. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20070221.131236/index.html.
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com, suheureux@gmail, and Susan Wong. "Regional Development and Telecommunications Policy in Western Australia: Accessing knowledge to inform policy through complexity and action research." Murdoch University, 2006. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20070427.120905.
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This study explores how governments use knowledge to inform telecommunications policy-making and policy-implementation in regional development. It focuses on epistemological aspects and assumptions made within the parameters of Enlightenment thinking or the Newtonian paradigm, also known as the classical scientit1c paradigm. It argues that lmowledge formed within this paradigm, usually generated at a distance, has been individ,uated, detached, segmented and abstracted. 'Individuation' focuses on individuals and things rather than communities and processes. 'Detachment' separates the subjective mind from the objective environment to produce reliable information. 'Segmentation' produces validity of information by parsing the objective environment from its social and historical context. 'Abstraction' allows objectivity and systematisation of information. When used to inform policy, such knowledge creates a narrow 'standardising gaze' that 'disciplines' communities to conform to dominant social behaviour and beliefs. Case studies are used to demonstrate that the two major models of development, as products ofthis paradigm, employ this gaze rendering replicability difficult ifnot impossible. These models are the top-down and bottom-up approach that are epitomised by the Silicon Valley model and telecentre moveluent respectively. How this gaze inhibits/facilitates development in policy implementation is then examined in the Goldfields Esperance region in Western Australia. An holistic approach using cotnplex adaptive systems is used to understand the multidisciplinary aspects involved in development. This is combined with action research, a reflexive methodology. Action research has the ability to access local knowledge to provide data and evaluation in situ rather than on a post hoc basis. The findings demonstrate that complex systems analysis and action research provide a modus operandi that: a) recognises the interplay of various factors (such as power relations, economic cycle, social and political institutions) at different levels of the system; b) recognises time, context and path-dependence of regional development; c) provides a filter that minimises the 'standardising gaze' and d) gives an access to knowledge and insight to local issues, which can facilitate policy implementation of development that is sympathetic to regional communities.
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Coble-Neal, Grant. "Cost functions, subaddivity and natural monopoly : review, extension and application to Australian telecommunications /." Full text available, 2006. http://adt.curtin.edu.au/theses/available/adt-WCU20060627.143606.
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Bourk, Michael J., and n/a. "Universal service and people with disabilities : an anlysis of telecommunications policy making from 1975-1997." University of Canberra. Communication, 1998. http://erl.canberra.edu.au./public/adt-AUC20060608.160344.
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This thesis analyses the development of telecommunications universal service in relation
to people with disabilities and national policy making in Australia from 1975 to the end of
1997.
The history of public policy development in telecommunications universal service
obligations is analysed to gain an understanding of how different political, scientific,
social symbolic and material contexts have influenced policy. It is argued that social
symbolic and material contexts mutually constitute telecommunications policy. Social
symbolic influences, such as charity and 'rights' discourses of disability, have framed
telecommunications policy toward people with disabilities. Material contexts, including
changing technological, economic and legislative environments, have created favourable
conditions for either charity or 'rights' models of disability, and have dominated related
policy arenas at various times. The study demonstrates that policy arenas influenced by
certain discourses, may also lead to changes within the material environments.
The influence of community interest groups is also analysed to investigate their effect on
telecommunications policy. Associated with interest group influence on
telecommunications policy is a joint consultative process initiated by Telstra and
consumer groups in 1988. The value of the consultative process to people with
disabilities is evaluated.
A key focus of this study is the consideration given by policy makers to the interests of
people with a disability in the continuing debate on access and equity issues in relation to
telecommunications services for all Australians. A turning-point in telecommunications
policy for people with disabilities occurred in 1995, when various people with a disability
made a successful complaint against Telstra to the Human Rights and Equal Opportunity
Commission (HREOC). The outcome forced a major change of policy in
telecommunications service delivery and benefited many who have disabilities.
The HREOC inquiry is a useful case study which indicates the significance of the
mutually constitutive effect on policy stemming from the dynamic interaction of social
symbolic environments and material conditions. The research revealed that policy in this
area may be described as a pluralist, non-linear process. Government and Telstra policy
makers have found telecommunications policy a problematic area to reconcile with
universal service obligations.
19
Magrath, Shane. "An inquiry into pbnm system performance required for massive scale telecommunication applications /." Electronic version, 2006. http://adt.lib.uts.edu.au/public/adt-NTSM20061024.133717/index.html.
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Krios, Kon, and kon krios@telstra com. "An exploratory case study of internal service quality in a telecommunications organisation a frontline employee perspective." Swinburne University of Technology, 2005. http://adt.lib.swin.edu.au./public/adt-VSWT20060505.152642.
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The following dissertation is an exploratory case study of a telecommunications organisation�s call
centres. Specifically, it was focused on investigating internal service quality issues that related to
the frontline employee role, a clearly underdeveloped area of study in services marketing literature.
The study involved firstly identifying the internal services delivered to frontline employees, and
then gaining their perceptions of the service quality dimensions most important to them within each
workplace situation. This in turn provided an indication of how internal services could be
customised and classified to best meet frontline employees� work requirements and therefore
increase their job effectiveness. In addition, the case study explored frontline employees� overall
perceptions of the quality of delivery of each internal service, which helped provide further insights
into their work needs. Frontline employees� perceptions were also sought regarding the importance
of each internal service to them, in terms of increasing their ability to generate revenue for the
organisation. This provided an indication of how different internal services impacted upon their
exchanges with external customers.
Twelve internal services and seven internal service quality dimensions were identified through
conducting extensive observation and undertaking interviews with frontline employees at one of the
call centres. The information obtained helped inform a web-based online survey that was
implemented to address the three focal research questions. The online survey was successfully
completed by 301 frontline employees.
The results showed that while all twelve internal services shared some similarities in their demand
characteristics, some groups of internal services were distinctly different to others. As a result of
these similarities and differences, the internal services were classified into four categories: trainingintensive
internal services; communication-based internal services; real-time-based internal
services; and, performance-related internal services.
While the four classification categories can provide a solid guide for internal suppliers about how to
approach groups of internal services, it was apparent that frontline employees had unique needs in
each of the twelve internal services. This emphasised the need for the classification scheme to be
used only as a guide, whereby internal suppliers should methodically identify all the quality
attributes most important to frontline employees in each individual internal service situation.
The results also showed that frontline employees perceived some internal services as more
important than others, in terms of increasing their ability to generate revenue for the organisation.
As a result, it was suggested that internal services could also be classified according to their
�importance� levels, as this could help managers in their allocation of organisational resources.
The case study provided a valuable insight into frontline employees� needs, and other internal
service quality issues related to their roles. Because the results and conclusions were specific to a
particular case, it is essential that this area of research be extended further in future.
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au, martinia@westnet com, and Angelita Martini. "Community participation in government and private sector planning: a case study of health and telecommunications planning for rural and remote Western Australia." Murdoch University, 2006. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20081002.100047.
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This study was conducted in the context of health service planning in an environment of changing government strategies for regional, rural and remote area health care and telecommunications infrastructure planning in Western Australia. The study provides an account of the State Government of Western Australias planning for the implementation of a telecommunications network infrastructure, and specifically the Telehealth Project, conducted between 1998 and 2002.
The purpose of this study was to examine influences on community participation in planning within the dynamic political, economic and social forces that impact on the development of regional, rural and remote area health services. Specifically, the study outlines the issues and barriers in providing for significant local participation in projects that are centrally initiated and controlled. It examines the influences in planning for projects that incorporate local community based beliefs and needs, the requirements of collaborating with multiple state and national government departments, and the private sector.
This study was situated within the interpretive paradigm, and is conceptualised within Donabedians (1969) framework for assessing and assuring quality in health care. The methodological approach is bound within a case study and consists of a participatory action research approach. The research method uses the single case to undertake in-depth interviews, observations and a survey to collect data from community, government and industry members as a basis for reflection and action.
The findings of the study clearly indicated that there was consensus between all rural, remote and metropolitan area participants that telecommunications did offer the opportunity to provide increased, improved or alternative health services. However, there were a number of obstacles to the success of the planning process, including a lack of local community inclusion in planning committees, poor communication within central government agencies, overuse of external consultants, a bias toward the medical view, a limited scope of invitation to contribute, and local information being overlooked in the final implementation plan.
Analysis of planning for the Telehealth Project reveals the implications of organisational and political stakeholders making final decisions about outcomes; and provides a reminder of the importance of engaging communities authentically when planning for health and telecommunications services which involve the public and
private sectors.
The originality and significance of this study stems from understanding how technology can advance community health; through measures such as the use of community participation strategies, through authentic community based leadership, truly representative participants, decentralised decision making, a focus on community based health needs and change management strategies that include all of these. Consequently, the study advances knowledge of community participation in planning, and the evidence suggests implications for practice, education and further research.
22
Smith, Anthony C. "The feasibility and cost-effectiveness of a novel telepaediatric service in Queensland /." [St. Lucia, Qld.], 2004. http://adt.library.uq.edu.au/public/adt-QU20050121.145040/index.html.
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Fitzpatrick, Paul G., and paul g. fitzpatrick@team telstra com. "Traffic modelling and performance of layered cellular networks with overflow." Swinburne University of Technology, 1997. http://adt.lib.swin.edu.au./public/adt-VSWT20060119.093920.
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This thesis reports on an investigation into the teletraffic modelling and performance of layered cellular networks that use overflow for new call and handover attempts in order to improve system performance It addresses the important problems how to model and analyse overflow in large cellular networks so that the overall impact across the network can be evaluated, the overflow policies that can be used with new calls and handovers to improve network performance and how these policies perform under a range of conditions.
The general problem of modelling overflow in cellular networks is considered at length and from this it is concluded that the use of overflow in existing schemes such as directed retry, reuse partitioning and overlaid cells can also be described by the simple concepts of intra and inter layer overflow Using these concepts the author formulates the problem of overflow in layered networks as a subset of the general problem of overflow with multiple overflow routes and restricted overflow. This leads to the derivation of the mean and variance of the overflow traffic from a cell with multiple handover routes and restricted handover from the two-dimensional birth death model of the system.
These expressions for the mean and variance are used in conjunction with the Equivalent Random Theory and splitting formulae in the development of the Splitting Formula Method or SF Method. The accuracy of three splitting formulae and a simple Poisson approximation are investigated and compared with simulation. From this we conclude that the splitting formulae of Akimaru and Takahashi and Wallstrom provide the best overall result. This method is used to solve the general problem of multiple user classes for an example two layer network. This leads to conclusions on the complex relationship between cell capacity, the proportion of uses that can access the microcells and the proportion of users that can overflow from the microcell to the macrocell.
The Modified Splitting Formula Method is an extension of the SF Method that includes handovers and overflow for handovers. A user perceived measure of the effect of new call and handover blocking described by the probability of call failure augments the Modified SF method. This is then used to analyse five new call overflow policies for a three layer network under conditions of extended handover, restrictions on handover for calls in cells at the edge of layers and spatial offset between the peak of the traffic demand and the cell layout. The results give new and valuable insight into the behaviour of layered cellular networks with overflow and the trade-offs in performance that exist when designing and operating these networks.
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Foo, Justin. "Exploiting multiuser diversity with capture in wireless networks." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0168.
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In a wireless network, owing to the time-varying nature of wireless channels, different mobile users typically experience peaks and troughs in channel quality at different times. This diversity in channel quality is known as multiuser diversity. With the aid of rate adaptation, multiuser diversity can be exploited by allowing the mobile user with the best channel to use the channel resource. However, in order to achieve this in most practical systems, the mobile users in the network must feed back their channel state information (CSI) to the transmitting user. In large networks, this feedback overhead can outweigh the multiuser diversity gain. In this thesis dissertation, a centralised wireless medium access control (MAC) scheme, namely Multiuser Diversity with Capture (MDC), is discussed as a solution to obviate the overhead problem. MDC explicitly employs the capture effect in radio receivers to reduce network overhead by allowing multiple mobile stations (MSs) with channels better than a nominal response threshold to simultaneously compete for the wireless channel. Owing to the capture effect, the base station (BS) can determine which MS has the best channel. In comparison with the Medium Access Diversity (MAD) scheme in the literature, the proposed MDC possesses the strong merit that the feedback overhead is independent of the number of MSs in the network. Several aspects of the MDC scheme are investigated in detail. An application of the MDC scheme based on the physical layer and parts of the MAC layer of the IEEE 802.11a standard is considered. A general analytical framework for the goodput performance of MDC is derived. Using this framework, the exact closed form solution for the expected goodput of MDC with rate adaptation over Rayleigh fading channels is calculated. The fairness performance of MDC in networks where some MSs experience better average channel conditions than others is also addressed. MSs with low average channel states tend to use the channel less often in MDC than MSs with high average channel states. This issue is tackled with Fairer Multiuser Diversity with Capture (FMDC), a variant of the MDC scheme designed to share the channel resource more equitably across all of the MSs in the network. In FMDC, instead of using the network-wide response threshold to decide whether to compete for the channel, each MS only competes for the channel when their channel state is greater than a threshold factor multiplied by their average channel state. Finally, the problem of adaptive optimisation of the response threshold for MDC and the threshold factor for FMDC is also considered. In the proposed solution, the response threshold and the threshold factor are adapted heuristically according to the estimated goodput performance of the system. The adaptive heuristic has importance in practical systems because the BS usually does not know the characteristics of the time varying channels of the MSs in the network.
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Danyali, Habibollah. "Highly scalable wavelet image and video coding for transmission over heterogeneous networks." Access electronically, 2004. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20041027.115306/index.html.
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Ozdogan, Ali. "Communication Assistance for Law Enforcement Act of 1994: A Case Study." Thesis, University of North Texas, 2001. https://digital.library.unt.edu/ark:/67531/metadc2877/.
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The purpose of this study is: to explore and analyze the Communication Assistance for Law Enforcement Act of 1994 (CALEA), to identify problems related to CALEA, to identify solutions devised by other countries to overcome problems similar to CALEA's, and to propose feasible solutions to CALEA problems.
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Hickerson, Jon D. (Jon David). "The Impact of Corporate Interlocks on Power and Constraint in the Telecommunications Industry." Thesis, University of North Texas, 1992. https://digital.library.unt.edu/ark:/67531/metadc500891/.
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Using the tools of structural and network analysis developed by Ronald R. Burt and others, this study investigated the communication patterns among corporate officers of American Telephone and Telegraph Corporation (A.T. & T.) and United Telecommunications Corporation (Sprint). Data on contacts, efficiency, network density, and constraint indicate that opportunities for power and constraint have remained relatively stable at United Telecommunications between 1980 and 1990. A. A.T. & T., on the other hand, was more affected by the drastic changes in the telecommunication industry. The span of A.T. & T. has grown smaller and the potential for constraining relations among A. T. & T. and financial institutions has increased during the period 1980 and 1990.
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Srisarkun, Vilasinee. "Efficiency in utilizing ICT infrastructure in developing countries a case study of the Royal Thai Police's attitudes to the adoption of an image retrieval application for eyewitness identification /." Access electronically, 2004. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20050303.110027/index.html.
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Russell, Trevor G. "Establishing the efficacy of telemedicine as a clinical tool for physiotherapists : from systems design to randomised controlled trial /." [St. Lucia, Qld.], 2004. http://adt.library.uq.edu.au/public/adt-QU20040608.114117/index.html.
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Ross, Peter, and n/a. "Organisational and Workforce Restructuring in a Deregulated Environment: A Comparative Study of The Telecom Corporation of New Zealand (TCNZ) and Telstra." Griffith University. Graduate School of Management, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030930.155125.
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In the late 1980s, governments in New Zealand and Australia began to deregulate their telecommunications markets. This process included the corporatisation and privatisation of former state owned telecommunications monopolies and the introduction of competition. The Telecom Corporation of New Zealand (TCNZ) was corporatised in 1987 and privatised in 1990. Its Australian counterpart, Telstra, was corporatised in 1989 and partially privatised in 1997. This thesis examines and compares TCNZ and Telstra's changing organisational and workforce restructuring strategies, as they responded to these changes. It further examines how these strategies influenced the firms' employment relations (ER) policies. Strategic human resource management (SHRM) and transaction costs economics (TCE) theories assist in this analyse. TCE links organisational restructuring to the make/buy decisions of firms and the asset-specificity of their employees. It suggests that firms will retain workers that have developed a high degree of firm-specific skills, and outsource more generic and semi-skilled work. Firm strategies are also influenced by national, contextual, factors. From a TCE perspective, these external factors alter relative transaction costs. Hence, different ownership structures, ER legislation and union power help to explain differences in TCNZ and Telstra's organisational restructuring and ER strategies. During the decade from 1990 to 2000, TCNZ and Telstra cut labour costs through large-scale downsizing programs. Job cuts were supported by outsourcing, work intensification and the introduction of new technologies. These initial downsizing programs were carried out through voluntary redundancies, across most sections of the firms. In many instances workers simply self-selected themselves for redundancies. TCNZ and Telstra's downsizing strategies then became more strategic, as they targeted generic and semi-skilled work for outsourcing. These strategies accorded with a TCE analysis. But TCNZ and Telstra engaged in other practices that did not accord with a TCE analysis. For example, both firms outsourced higher skilled technical work. TCNZ and Telstra's continued market domination and the emphasis that modern markets place on short term profits, provided possible reasons for these latter strategies. This thesis suggests, therefore, that while TCE may help to predict broad trends in 'rational organisations', it may be less effective in predicting the behaviour of more politically and ideologically driven organisations aiming for short term profit maximisation. Some TCNZ and Telstra workers were shifted to subsidiaries and strategic alliances, which now assumed responsibility for work that had previously been performed in-house. Many of these external firms re-employed these workers under more 'flexible' employment conditions. TCNZ and Telstra shifted to more unitarist ER strategies with their core workers and reduced union influence in the workplace. Unions at Telstra were relatively more successful in retaining members than their counterparts at TCNZ. By 2002, TCNZ and Telstra had changed from stand-alone public sector organisations, into 'leaner' commercially driven firms, linked to subsidiaries, subcontractors and strategic alliances.
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Tomlin, Toby-Daniel. "Analysis and modelling of jitter and phase noise in electronic systems : phase noise in RF amplifiers and jitter in timing recovery circuits." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0021.
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Timing jitter and phase noise are important design considerations in most electronic systems, particularly communication systems. The desire for faster transmission speeds and higher levels of integration, combined with lower signal levels and denser circuit boards has placed greater emphasis on managing problems related to phase noise, timing jitter, and timing distribution. This thesis reports original work on phase noise modelling in electronic systems. A new model is proposed which predicts the up-conversion of baseband noise to the carrier frequency in RF amplifiers. The new model is validated by comparing the predicted phase noise performance to experimental measurements as it applies to a common emitter (CE), bipolar junction transistor (BJT) amplifier. The results show that the proposed model correctly predicts the measured phase noise, including the shaping of the noise about the carrier frequency, and the dependence of phase noise on the amplifier parameters. In addition, new work relating to timing transfer in digital communication systems is presented. A new clock recovery algorithm is proposed for decoding timing information encoded using the synchronous residual time-stamp (SRTS) method. Again, theoretical analysis is verified by comparison with an experimental implementation. The results show that the new algorithm correctly recovers the source clock at the destination, and satisfies the jitter specification set out by the ITU-T for G.702 signals.
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Nguyen, Toan Hieu, and toan nguyen@novita org au. "ACCESSIBLE MOBILE COMMUNICATION FOR PEOPLE WITH DISABILITIES." Flinders University. Informatics and Engineering, 2006. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20060331.111126.
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People with disabilities are both functionally and socially disadvantaged and the lack of access to mobile communication technology adds to their disadvantage. Changes and benefits we have seen in our society with the advent of mobile phones and associated electronic communication for people without disabilities have not migrated to people with disabilities. The comprehensive communication capability of a mobile phone can enable users anywhere to independently access a very wide range of communication, information and control systems and services. This research has addressed the key accessibility issues faced by people with disabilities who need or want to use the mobile phone for voice and data communication.
The research revealed that:
� there exist accessible features on mobile phones that can better assist people with disabilities in using the phone;
� through education and training, people with disabilities can develop or be provided with effective and efficient ways to access and use the phone;
� current, off-the-shelf telecommunications equipment such as car kits, speakerphone, voice recognition technology, wireless connectivity capability on mobile phones can enable people with disabilities, even severe physical disabilities, to access the telecommunications network and services; and
� with a suitable interfacing system in place, Augmentative and Alternative Communication (AAC) device users can operate the phone for voice and data communication, which previously had not been possible.
Trials established that people with a range of physical disabilities can use and should have equal access to telecommunications equipment and services. This research has shown that, with the right policies, processes and support through equipment matching, education, training and delivery, current off-the-shelf solutions can help people with disabilities to effectively communicate with other members of our society and to access the same range of information systems and services enjoyed by able-bodied members of the community.
An interfacing system has been developed to provide users of AAC technology with the ability to use a mobile phone for voice calls and text messaging (SMS). It is confidently predicted that other features and services on the phone such as speakerphone, digital camera and FM radio, email and internet-based applications, and local or remote appliances and devices, can be controlled via the AAC device.
Outcomes and findings have confirmed the main hypothesis of the thesis that, despite very limited mobility, speed, accuracy and vocal communication ability, users will be able to successfully operate the mobile phone itself, and use it for various modes of bidirectional communication with systems to which they choose to connect.
The overall outcomes of the research have established that the benefits and usefulness of the mobile phone are so significant that they should become a necessity for people with a disability. It has been successfully demonstrated that, with the proper mechanisms and educational programs in place, the provision of accessible mobile phones for people with disabilities can significantly improve their quality of life through increased range of accessible activities, and will improve their independence, engagement with their peers, safety, security and self-esteem.
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Lyamin, Nikita. "Performance evaluation of C-ACC/platooning under ITS-G5 communications." Licentiate thesis, Högskolan i Halmstad, Centrum för forskning om inbyggda system (CERES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-32320.
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Intelligent Transport Systems (ITS) are aiming to provide innovative services related to different modes of transport and traffic management, and enable various users to be better informed and make safer, more coordinated and smarter use of transport networks. Cooperative-ITS (C-ITS) support connectivity between vehicles, vehicles and roadside infrastructure, traffic signals as well as with other road users. In order to enable vehicular communications European Telecommunication Standards Institute (ETSI) delivered ITS-G5 -- a of set of C-ITS standards. Considering the goals of C-ITS, inter-vehicle communications should be reliable and efficient. In this thesis we study the performance, efficiency, and dependability of ITS-G5 communications for Cooperative adaptive cruise control (C-ACC) and platooning C-ITS applications. We provide an overview of currently available and ongoing standardization targeting communications in C-ACC/platooning. We study the performance of ITS-G5 beaconing in a C-ACC/platooning scenario, where we show that its performance may deteriorate when implemented in cooperative driving applications due to the kinematic-dependent design of the message triggering mechanism. We explain in detail the cause of this phenomenon and test it for a wide range of parameters. Also, we study the influence of different available ITS-G5 legitimate setups on the C-ACC/platooning fuel efficiency and demonstrate that proper communication setup may enhance fuel savings. This thesis also proposes a jamming denial-of-service attack detection algorithm for platooning. The main advantage of our detector is its short learning phase that not exceed a second and low detection delay of a few hundreds of milliseconds. Under some assumptions, the proposed algorithm demonstrates the ability to detect certain types of attacks with average probability above 0.9.ACDC
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Broege, Stephanie, and n/a. "Mobile New Zealand : a multi-method comparative study of cell phone use." University of Otago. Department of Media, Film and Communication Studies, 2008. http://adt.otago.ac.nz./public/adt-NZDU20080819.150246.
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Worldwide use of mobile phones has created a new basis for interpersonal communication and has become a ubiquitous feature of youth culture. Hence the examination of global mobile phone adoption is a global challenge for communication researchers as well as for the media industries. Thus far, New Media research in New Zealand (NZ) has focused on children and teenagers. The group of young adults between 18-25 years has rarely been surveyed. This thesis focused on university students� use of mobile communication in NZ in the context of their everyday practices. The Mobile Media Study (MMS) was designed as a cross-national comparative research project with a focus on NZ together with one European and one North American country. The usage behavior, experiences, attitudes, and opinions of young NZers� towards mobile phone use was examined and contrasted to young German and American students. Methodological and data triangulation was applied and data was collected at the University of Otago, the City University of New York, the Pennsylvania State University, and the University of Leipzig. MMS survey research was conducted along with focus group and personal interviews, and qualitative exercises. In addition, the latest data from a longitudinal study of New Media use in Germany, the US and NZ served as a secondary, comparative, and complementary dataset.
The research questions focused on general mobile phone use, text-messaging (SMS), the acceptance of Third Generation (3G) cell phones, mobile phone use in public places, gender-specific usages, and the construction of mobile social networks. Altogether, data from 1,316 students at four universities in three countries was analyzed. Results indicated that the number of providers as well as tariff structures appear to influence mobile phone adoption within a country. To adjust to the duopoly situation young people in NZ preferred prepaid cards in connection with a SMS package. This was reflected by extraordinarily high use of SMS in NZ. By comparison German and American students preferred annual contracts. Americans, who had the strongest preference for mobile calling, also had the highest monthly expenses. Additionally, findings revealed that overall user interest in 3G services is not yet very high. It was found that in particular NZ students do not exploit the full range of mobile services already available to them and feel confident that their current cell phone gratifies all their needs. They concentrate on using basic functions, such as calling and SMS. In addition, results suggest a decreasing role of the landline telephone and email for interpersonal communication.
Gender differences were found with NZ women in particular being most enthusiastic about SMS. German men had the most negative attitude toward SMS and also used the service the least in comparison to the other students surveyed. In general women had a preference for the communicative functions on their mobile phone including voicemail and more women than men in Germany and NZ were found to play mobile phone games. Finally, evidence of gender specific social network structures were found in NZ with male networks resembling spider webs while female networks were centered so that all persons in the network connected back to the center. Overall, students only used a fraction of the contacts in their mobile phone book and communicated mostly within a limited local area. In conclusion, a replication of the MMS was suggested along with further multi-method research in the field of Asian-NZer�s New Media use.
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Witosurapot, Suntorn, and wsuntorn@fivedots coe psu ac th. "Resolving competition for resources between multimedia and traditional Internet applications." Swinburne University of Technology, 2004. http://adt.lib.swin.edu.au./public/adt-VSWT20050309.123048.
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Although the Internet is the dominant broadband network, it still has a fundamental shortcoming in traffic management that does not properly support efficient use of resources together with differentiated quality of service for mixed traffic types. Even though a number of mechanisms have been proposed under key approaches of resource adaptation, resource reservation, and resource pricing, this problem remains unsolved to date because of its complexity and the way it relates to so many considerations of engineering and economics, and the diverse range of services desired by users. Hence it is considered difficult to devise a perfect mechanism that can universally solve this problem. In this respect, this dissertation contributes to insights into potential combinations and trade-offs of key approaches above in some efficient manner for managing traffic and scarce resources in the Internet. The first part of this work considers the combination of relaxed resource reservation and resource pricing schemes for handling the unfair bandwidth distribution problem in soft-bandwidth guarantee services of the Differentiated Services (DiffServ) Internet. We show that this unfairness problem can be handled using a network-user cooperative approach that addresses both individual user satisfaction and global optimization. We propose to add a mechanism based on price-based feedback signaling to DiffServ-capable routers providing Assured Forwarding (AF) Service so that they can offer per-flow signaling. This still allows them to work at an aggregate traffic level, hence the scalability feature of the DiffServ network can be retained. Our proposed mechanism allows the network to offer reliable service assurances via a distributed optimization algorithm, without introducing special protocols or requiring routers to have access of individual user requirements. Moreover, it can provide incentives for users to cooperate so that optimum performance can be accomplished. This approach has broad applicability and is relevant to all types of assured service classes. The second part of this work considers the combination of a specific resource pricing scheme based on a distributed optimization algorithm and multimedia adaptation schemes. Such a capability has not been available because most utility functions of multimedia applications do not meet the concavity constraints required by optimization algorithm. We proposed to overcome this limitation by redefining user utility functions into equivalent discrete forms and using combinatorial (discrete) optimization so that interfacing the resource-pricing scheme can be done in a normal way. However, to obtain feasible solutions in a scalable manner, an agent is included into the scheme for solving the combinatorial (discrete) optimization on behalf of a small group of users. In return, all users belonging to this group can benefit from social welfare maximization of their utilities over a network resource constraint. The last part of this work considers the combination of relaxed resource reservation and resource pricing schemes to enable a proper charging scheme for adaptive applications in the DiffServ Internet. We provide an optimization formulation of the problems of revenue and social welfare maximization, applied at a service provider (SP) who gives access to the DiffServ Internet. In this scheme, resources are provisioned per QoS-oriented class in a long time scale (service level agreement (SLA) duration), then priced based on user demand in the short time scale. We also show that the proposed charging scheme can provide feedback and incentives for users to use the network resource optimally via the standard packet marking, hence eliminating the need for specific pricing protocol. All of the proposals in this work can be used together, solving these key problems as a coordinated whole, and all use readily available network mechanisms.
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Glenn, Dickins, and glenn dickins@dolby com. "Applications of Continuous Spatial Models in Multiple Antenna Signal Processing." The Australian National University. Research School of Information Sciences and Engineering, 2008. http://thesis.anu.edu.au./public/adt-ANU20080702.222814.
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This thesis covers the investigation and application of continuous spatial models for multiple antenna signal processing. The use of antenna arrays for advanced sensing and communications systems has been facilitated by the rapid increase in the capabilities of digital signal processing systems. The wireless communications channel will vary across space as different signal paths from the same source combine and interfere. This creates a level of spatial diversity that can be exploited to improve the robustness and overall capacity of the wireless channel. Conventional approaches to using spatial diversity have centered on smart, adaptive antennas and spatial beam forming. Recently, the more general theory of multiple input, multiple output (MIMO) systems has been developed to utilise the independent spatial communication modes offered in a scattering environment.¶
Underlying any multiple antenna system is the basic physics of electromagnetic wave propagation. Whilst a MIMO system may present a set of discrete inputs and outputs, each antenna element must interact with the underlying continuous spatial field. Since an electromagnetic disturbance will propagate through space, the field at different positions in the space will be interrelated. In this way, each position in the field cannot assume an arbitrary independent value and the nature of wave propagation places a constraint on the allowable complexity of a wave-field over space. To take advantage of this underlying physical constraint, it is necessary to have a model that incorporates the continuous nature of the spatial wave-field. ¶This thesis investigates continuous spatial models for the wave-field. The wave equation constraint is introduced by considering a natural basis expansion for the space of physically valid wave-fields. This approach demonstrates that a wave-field over a finite spatial region has an effective finite dimensionality. The optimal basis for representing such a field is dependent on the shape of the region of interest and the angular power distribution of the incident field. By applying the continuous spatial model to the problem of direction of arrival estimation, it is shown that the spatial region occupied by the receiver places a fundamental limit on the number and accuracy with which sources can be resolved. Continuous spatial models also provide a parsimonious representation for modelling the spatial communications channel independent of specific antenna array configurations. The continuous spatial model is also applied to consider limits to the problem of wireless source direction and range localisation.
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Nguyen, Cong Duc. "Creation and distribution of real-time content a case study in provisioning immersive voice communications to networked games /." Access electronically, 2006. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20070110.164837/index.html.
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Schweizer, Andreas. "Analysis and optimisation of stable matching in combined input and output queued switches." Western Australian Telecommunications Research Institute, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0078.
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Output queues in network switches are known to provide a suitable architecture for scheduling disciplines that need to provide quality of service (QoS) guarantees. However, todays memory technology is incapable of meeting the speed requirements. Combined input and output queued (CIOQ) switches have emerged as one alternative to address the problem of memory speed. When a switch of this architecture uses a stable matching algorithm to transfer packets across the switch fabric, an output queued (OQ) switch can be mimicked exactly with a speedup of only two. The use of a stable matching algorithm typically requires complex and time-consuming calculations to ensure the behaviour of an OQ switch is maintained. Stable matching algorithms are well studied in the area in which they originally appeared. However, little is presently known on how the stable matching algorithm performs in CIOQ switches and how key parameters are affected by switch size, traffic type and traffic load. Knowledge of how these conditions affect performance is essential to judge the practicability of an architecture and to provide useful information on how to design such switches. Until now, CIOQ switches were likely to be dismissed due to the high complexity of the stable matching algorithm when applied to other applications. However, the characteristics of a stable matching algorithm in a CIOQ switch have not been thoroughly analysed. The principal goal of this thesis is to identify the conditions the stable matching algorithm encounters in a CIOQ switch under realistic operational scenarios. This thesis provides accurate mathematical models based on Markov chains to predict the value of key parameters that affect the complexity and runtime of a stable matching algorithm in CIOQ switches. The applicability of the models is then backed up by simulations. The results of the analysis quantify critical operational parameters, such as the size and number of preference lists and runtime complexity. These provide detailed insights into switch behaviour and useful information for switch designs. Major conclusions to be drawn from this analysis include that the average values of the key parameters of the stable matching algorithm are feasibly small and do not strongly correlate with switch size, which is contrary to the behaviour of the stable matching ii algorithm in its original application. Furthermore, although these parameters have wide theoretical ranges, the mean values and standard deviations are found to be small under operational conditions. The results also suggest that the implementation becomes very versatile as the completion time of the stable matching algorithm is not strongly correlated to the network traffic type; that is, the runtime is minimally affected by the nature of the traffic.
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Rowe, Joshua Luke, and josh@email nu. "Improving internet usability - a framework for domain name policy evaluation." RMIT University. Business Information Technology, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20091111.101705.
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A domain name is a unique alphanumeric designation that facilitates reference to sets of numbers which actually locate a particular computer on the Internet. Domain names are a fundamental part of the Internet's user interface. Improving the usability of the Internet depends upon effective domain name policy. This study is intended to contribute to improvement in Internet usability for the end users of domain names. Benefits of more usable domain names include: higher sales, customer satisfaction and productivity, and reduced support costs. Domain name policies worldwide vary considerably. Consequently, end users are inconvenienced by contradictory domain name policies, diminishing the predictability of an entity's domain name, and thus decreasing usability for end users. The study objective was to develop criteria with which policy makers can evaluate their domain name policies, in order to improve the usability of domain names for end users. The main research question posed was: What are the criteria for an effective domain name policy? The research methodology included a literature review, domain name policy examination and an ethnographic narrative. The literature review found existing research examining either domain names or usability in isolation. However, research examining the intersection of the two is scarce. The existing research describes domain names as part of the web user interface. In practical terms, this is about how people use domain names to access web sites, email addresses and other Internet resources. It was established that the predictability (and thus usability) of domain names relies on effective domain name policy. The non-standardised and widely delegated process of domain name policy development leads to unpredictable and inconsistent domain names. The narrative recollection presented the researcher's inside perspective on the domain name industry, with a focus on domain name usability. The researcher provided first-hand insights into the evolution of the industry and policy development process, from Australian and international perspectives. To address the problem of poor domain name usability, a framework for domain name policy evaluation is proposed. The framework extends the current research that treats domain names as a user interface by proposing criteria which address usability concerns. The framework allows policy makers to critically assess domain name policies with end users in mind. Examples of the criteria include: understanding who are its intended and untended users, and whether it's consistent with other domain names. The framework has the potential to set an international standard for the critical evaluation of domain name policy, and become the basis for further research. This study was developed from the researcher's perspective as a participant in the domain name industry. A secondary lens regarding the usability of domain names was then applied. This study has only scraped the surface in terms of how the research fields of domain names and usability may be considered together. The research methodology for this study was primarily qualitative and interpretive. A quantitative study of domain name policies globally could provide further insight into areas including: the differences in second level country code domain names, and language implications of domain names.
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Dewstow, Ross. "Using the internet to enhance teaching at the University of Waikato /." Click here to download thesis from Australasian Digital Theses Program, 2006. http://adt.waikato.ac.nz/public/adt-uow20060926.111717/index.html.
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Biswas, Kamanashis, and Md Liakat Ali. "Security Threats in Mobile Ad Hoc Network." Thesis, Blekinge Tekniska Högskola, Avdelningen för för interaktion och systemdesign, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5926.
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Mobile Ad Hoc Network (MANET) is a collection of communication devices or nodes that wish to communicate without any fixed infrastructure and pre-determined organization of available links. The nodes in MANET themselves are responsible for dynamically discovering other nodes to communicate. Although the ongoing trend is to adopt ad hoc networks for commercial uses due to their certain unique properties, the main challenge is the vulnerability to security attacks. A number of challenges like open peer-to-peer network architecture, stringent resource constraints, shared wireless medium, dynamic network topology etc. are posed in MANET. As MANET is quickly spreading for the property of its capability in forming temporary network without the aid of any established infrastructure or centralized administration, security challenges has become a primary concern to provide secure communication. In this thesis, we identify the existent security threats an ad hoc network faces, the security services required to be achieved and the countermeasures for attacks in each layer. To accomplish our goal, we have done literature survey in gathering information related to various types of attacks and solutions, as well as we have made comparative study to address the threats in different layers. Finally, we have identified the challenges and proposed solutions to overcome them. In our study, we have found that necessity of secure routing protocol is still a burning question. There is no general algorithm that suits well against the most commonly known attacks such as wormhole, rushing attack etc. In conclusion, we focus on the findings and future works which may be interesting for the researchers like robust key management, trust based systems, data security in different layer etc. However, in short, we can say that the complete security solution requires the prevention, detection and reaction mechanisms applied in MANET.
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Duong, Duc Van. "Analysis and optimization of pilot-aided adaptive coded modulation under noisy channel state information and antenna diversity." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-987.
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The thesis is largely built on a collection of published and submitted papers where the main focus is to analyze and optimize single-carrier adaptive coded modulation systems with and without antenna diversity. Multidimensional trellis codes are used as component codes. The majority of the analysis is done with both estimation and prediction errors being incorporated. Both channel estimation and prediction are performed using a pilot-symbol-assisted modulation scheme. Thus, known pilot symbols (overhead information) must be transmitted; which consumes power and also degrades system spectral efficiency. Both power consumption and pilot insertion frequency are optimized such that they are kept at necessary values to maximize system throughput without sacrificing the error rate performance. The results show that efficient and reliable system performance can be achieved over a wide range of the considered average channel quality. Going from a single-input single-output system to both spatially uncorrelated and correlated single-input multiple-ouput (SIMO) systems, and further to an uncorrelated multiple-input multiple-output (MIMO) diversity system, is the evolution of the thesis. In the SIMO case, maximum ratio combining is used to combine the incoming signals, whereas the signals are space-time combined in the MIMO diversity system. The multiple-input single-output system comes out as a special case of a MIMO system. Besides the spatially uncorrelated antenna array, the effect of spatial correlation is also considered in the SIMO case. In this case, only prediction error is considered and channel estimation is assumed to be perfect. At first, the impact of spatial correlation in a predicted system originally designed to operate on uncorrelated channels is quanitifed. Then, a maximum a posteriori (MAP)-optimal “space-time predictor” is derived to take spatial correlation into account. As expected, the results show that the throughput is still lower than the uncorrelated system, but the degradation is decreased when the MAP-optimal space-time predictor is used. Thus, by exploiting the correlation properly, the degradation can be reduced. By numerical examples, we demonstrate the potential effect of limiting the predictor complexity, of fixing the pilot spacing, as well as of assuming perfect estimation. The two first simplifications imply lower system complexity and feedback rate, whereas the last assumption is usually made to ease the mathematical analysis. The numerical examples indicate that all the simplifications can be done without serious impact on the predicted system performance.
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Loh, Poh Kooi. "Innovations in health for older people in Western Australia." University of Western Australia. School of Medicine and Pharmacology, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0051.
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Australia and many other developed communities are ageing rapidly, placing a strain on the delivery of health services. This thesis examines the use of innovative health services management coupled with information and communication technology (ICT) to more efficiently deliver services to disabled older people in the hospital, community and residential care. The hypothesis explored is that ICT can provide clinical services to older people in poorly serviced communities and groups, thus extending the influence and capabilities of specialist health care professionals. The relevance of these studies is predominantly for those people who live outside the metropolitan regions, particularly in remote and rural communities, and also for those frail older people, who because of disability, are unable to travel to specialist health services. There are a series of studies presented in this thesis which have all been published. They have demonstrated that in a community and rural setting, ICT use in the assessment and management of geriatric syndromes such as dementia is valid and practical. This included the validation of commonly used assessment tools via Telehealth. A Telehealth protocol for assessment of Alzheimer's Dementia (AD) was developed and published. The use of ICT to link health services clinical and administrative data for determining stroke outcomes and disability has been evaluated and a resource utilization prediction model developed. Finally, in residential care a survey and a qualitative study of poor uptake of ICT services in hostels and nursing homes revealed insights into ICT perception by the older people in care facilities and their professional staff. The implications and future development of these studies have been discussed, especially barriers to increased uptake of ICT, cost comparisons and the potential of future technologies such as video conferencing mobile phones.
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Zápotocký, Jan. "Vliv digitalizace na české mediální právo a právní prostředí." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-85913.
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The diploma thesis The influence of digitization on the Czech media law and legal environment deals with the transformation of media law and legal environment during the transition from analogue to digital broadcasting in the Czech Republic. The text describes and evaluates change of the broadcasting legislation, and emphasizes not only the actual changes in legal regulations, but also the legislative process and influences that have affected the final text of the laws. In the introduction thesis describes the development of existing legislation, both domestic and the acquis communautaire. In further parts it answers the question how relevant, understandable and conceptual the change in the media legislation was, how these changes correspond to the current technical and organizational requirements of the media market and how the process have been influenced by jurisdictional dispute between Council for Radio and Television Broadcasting and Czech Telecommunication Office. In the second half space is devoted to the licensing procedure of new digital television and following litigation as well as a comparison with Slovak regulatory framework. Regarding the major changes of the legislation the author recommends adjustments de lege ferenda.
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Kazanci, Onur Husnu. "Performance Of Pseudo-random And Quasi-cyclic Low Density Parity Check Codes." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609036/index.pdf.
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Low Density Parity Check (LDPC) codes are the parity check codes of long block length, whose parity check matrices have relatively few non-zero entries. To improve the performance at relatively short block lengths, LDPC codes are constructed by either pseudo-random or quasi-cyclic methods instead of random construction methods. In this thesis, pseudo-random code construction methods, the effects of closed loops and the graph connectivity on the performance of pseudo-random LDPC codes are investigated. Moreover, quasi-cyclic LDPC codes, which have encoding and storage advantages over pseudo-random LDPC codes, their construction methods and performances are reviewed. Finally, performance comparison between pseudo-random and quasi-cyclic LDPC codes is given for both regular and irregular cases.
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Schröder, Ralf. "SDL-Datenkonzepte." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2003. http://dx.doi.org/10.18452/14926.
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SDL in der 1996 standardisierten Sprachversion ist zur Zeit die im Telekommunikationsbereich am weitesten verbreitete Sprache zur Spezifikation von Protokollen. Ein wesentlicher Aspekt der Sprachentwicklung seit 1988 ist auch die Verfügbarkeit einer formalen Basis semantischer Konzepte. Für das Datenkonzept der Sprache wurde auf die algebraischen Technik ACT ONE zurückgegriffen. Obwohl Anspruch als auch praktischer Wert von SDL in der Ausführbarkeit als Spezifikationstechnik liegt, wird dieses gerade durch das verwendete Datenmodell beeinträchtigt. Verdeckt wird dieses Problem durch die Bereitstellung von vordefinierten Datentypen. Durch die Erweiterung von SDL um objektorientierte Konzepte im Jahr 1992 und durch die allgemein wachsende Bedeutung der Daten in Protokollbeschreibungen treten die vorhandenen Sprachprobleme bei den Daten immer mehr in der Vordergrund. Individuelle Lösungen zur Spezifikation von Daten in verfügbaren SDL-Werkzeugen sind die Folge. In der vorliegenden Arbeit werden sowohl die praxismotivierten Unzulänglichkeiten als auch die formalen Unstimmigkeiten im SDL-Datenkonzept aufgezeigt. Auf der Grundlage einer systematischen Analyse werden ein allgemeiner Anforderungskatalog und eine Methodik für Veränderungen am Datenkonzept erarbeitet. Zusätzlich werden wichtige Sprachmodifikationen mit dem Schwerpunkten Ausdruckskraft und Ausführbarkeit vorgestellt und bewertet. Es steht somit ein Instrumentarium zur Verfügung, das den unterschiedlichen SDL-Interessengruppen bei der Bewertung und Nutzung von SDL-Veränderungen dienlich ist. Die in der Arbeit vorgestellten Modifikationen des Datenkonzepts basieren auf den langjährigen Erfahrungen des Autors bei der Implementierung und dem Einsatz von Werkzeugen, die mit verschiedenen projektspezifischen Zielstellungen SDL-Beschreibungen in ausführbare Programme überführen. Die Kombination von SDL mit einer weiteren Spezifikationstechnik, ASN.1, spielt hier eine besondere Rolle. Durch die aktive Mitarbeit des Autors bei der SDL-Sprachstandardisierung werden in der Arbeit auch Vorschläge präsentiert, die über das Potential der vorhandenen Werkzeuge hinausgehen. Das schließt beispielsweise die Bewertung der neuen, in der Praxis noch nicht etablierten, SDL-Version aus dem Jahr 2000 mit ein.SDL in the language version which was standardized in 1996 is the most-used language in the telecommunication domain for the specification of protocols today. An essential aspect of the language development since 1998 is the availability of a formal basis for semantic concepts. The algebraic technique ACT ONE is used for the data concept of the language. Although the requirement and the practical value of SDL is the execution a specification technique, this is impaired straight by the used data model. The problem is hidden by the supply of pre-defined data types. Because of the introduction of object oriented concepts in 1992 and because of the generally increasing importance of data for the protocol description the existing language problems are taking more and more attention. Individual solutions for the specification of data are the consequence with available SDL tools. In the presented document are pointed out the praxis motivated inadequacies as well as the formal discrepancy of the data concept. A general requirement catalogue and a methodology are designed for language modifications based on a systematic inspection of the SDL data concept. Furthermore important language modifications are introduced and evaluated with the focus to expression power and to execution. Instruments are provided thus, which are helpful to different SDL interest groups for the evaluation and for the application of SDL modifications. In the document presented data modifications are based on years of experience of the author in the implementation and application of tools that compile SDL specifications with different project-specific objectives into executable programs. The combination of SDL with a further specification technology, ASN.1, plays an important role here. Because of the active role of the author in the SDL standardization process also suggestions are presented going beyond the potential of the existing tools. That includes for example the evaluation of the new, in practice not yet established SDL version, published in 2000.
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Gondran, Alexandre. "Modélisation et optimisation de la planification des réseaux locaux sans fil." Phd thesis, Université de Technologie de Belfort-Montbéliard, 2008. http://tel.archives-ouvertes.fr/tel-00416060.
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Le problème de planification de réseaux WLAN consiste d'une part à positionner et à paramétrer des antennes dans un bâtiment et d'autre part à leur affecter une fréquence afin d'offrir aux clients un accès sans fil au réseau local. Le réseau ainsi construit doit répondre à des critères de couverture et de qualité de service, tout en minimisant le coût financier.Notre modélisation est basée sur le calcul du débit réel offert en chaque point de demande de service du réseau. Nous montrons que ce critère de débit réel permet une modélisation complète de la qualité de service car il unifie les critères habituels de couverture, de gestion des interférences et de capacité.
Notre optimisation traite simultanément le problème de placement des points d'accès et le problème d'affectation de fréquences par un algorithme à Voisinages Variables Aléatoires VVA : à chaque itération de cette recherche locale le type de voisinage est tiré au hasard. Cet algorithme est très modulaire et permet facilement de combiner les deux sous problèmes (placement et affection).
Ces travaux ont donné lieu à des collaborations et partenariats industriels : logiciel de planification globale des WLAN avec Orange Labs et solutions de planification séquentielle avec la start-up Trinaps.
Enfin nous approfondissons la modélisation du problème en explicitant les liens entre le calcul du débit réel et les SINR. Dans une première étape, nous montrons que les contraintes de seuil sur les SINR induisent un problème de T-coloration de graphe (condition nécessaire). Pour obtenir une équivalence rendant compte des interférences multiples, une généralisation du problème de T-coloration pour les hypergraphes est introduite. Dans une seconde étape, nous définissons un algorithme déduisant les seuils de SINR à partir des contraintes sur les débits réels. Cette nouvelle modélisation est la base de nos développements futurs.
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Li, Chih-Jen, and 李志仁. "The Research on the Regulatory Classification of Telecommunications Enterprises under the Telecommunications Act: Take Internet Telephony Service as Example." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/n4qdja.
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Hong, Gong-Long, and 洪榮隆. "The Study Relative Legal Matters on The Privatization of The Republic of China Telecommunications Industry.－With a Comparison Telecommunications Act of R.O.C.,U.S.A.,U.K.and Japan." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/33176201903071517041.
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LIN, YU CHANG, and 余昌霖. "Based on the ISO 27001: To Explore the Influence of Personal Information Protection Act toward Telecommunications." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/07670774879679859279.
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碩士國立中央大學
資訊管理學系在職專班
101
Some illegal persons cast greedy eyes on the telecommunication companies because of its communication, Internet and a large amount of users’ data. Therefore, the company’s business secrets and users’ data are frequently leaked and crisis of social credit are occurred. The study aims to study the telecommunications to explore the F Telecom’s concrete measures to protect the consumers’ data under the structure of ISO 27001 Information Security Management Systems (ISMS). Besides, ISO 27001 contain 11 control domains, 39 control objectives, 133 controls and the inspection items of ISO 27011. The research seeks to find out the relevance between ISO 27001 and Personal Information Protection Act (PIPA), then collate and analyze the data. The study shows that telecom use the existing ISMS structure to arrange the following processes, including Privacy Impact Assessment (PIA), definition and identification of personal data, the value criteria of personal data and the life cycle of personal data. It definitely can reinforce the security and control for the case company. In addition, for telecommunication companies, six domains and twenty-four measures are correlative with PIPA in ISO27001. There are two items for each compliance and human resources security; there are three for each asset management and access control; there are five items for Information security incident management, and there are nine items for communications and operations management. Hence, the telecom companies can invest more resources on the control measures when they plan to protect the PIPA. Besides, the research finds that the case company passes the ISO 27001 certification. They need to review the existing ISMS structure and build their operation procedures to make up its insufficient parts. They do not need to use the new authentication mechanism.