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Dissertations / Theses on the topic 'Telecommunication stations'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Jaldén, Niklas. "Analysis of Radio Channel Measurements Using Multiple Base Stations." Licentiate thesis, KTH, School of Electrical Engineering (EES), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4352.

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<p>Future wireless communication systems will utilize the spatial properties of the wireless channel to improve the spectral efficiency and thus increase capacity. This is realized by deploying multiple antennas at both the transmitter and receiver. Utilizing the spatial properties of the channel demands channel models that properly reflect these characteristics. Due to the unpredictable nature of the wireless channel, a common approach is to model its effects in a statistical fashion. A few large world wide cooperations, like the 3GPP or WINNER projects, have developed channel models intended

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2

Marais, Hendrik Gideon. "Development of dynamically reconfigurable ground station software." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/675.

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3

Neumeister, Kenneth Eugene. "Design and analysis of ground stations for Pacsat applications." Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03122009-040419/.

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4

Noon, James P. "Design of a multi-module multi-phase battery charger for the NASA EOS space platform testbed." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-08222009-040443/.

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5

Bakari, Salim Rashid. "Solar panel development for high altitude and low earth orbit application." Thesis, Cape Peninsula University of Technology, 2010. http://hdl.handle.net/20.500.11838/2208.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2010.<br>Stable and reliable source of electrical energy is a requirement for efficient operation of satellites. Several sources of electrical power for satellites exist such as fuel cells, nuclear or battery stored Direct Current energy but of late concentration has been on solar cells as the advantages compared to the other sources are many. Solar cells are p-n semiconductor devices which convert light energy into electrical energy by photovoltaic effect. The biggest drawback of solar cell energy system is

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6

Fox, Neil D. "A detailed analysis of the helical array as a high performance portable ground station antenna." Thesis, Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/74527.

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Modern satellite operations often require a portable ground station capability. However, the traditional large parabolic dish solidly mounted in concrete is not conducive to portable operation. This work offers the helical array as a viable alternative. A critical literature survey shows what work has been performed by others, and what issues must be addressed so that a feasible helical array design may be put forth. Analysis was performed using data from experiments and from a computer simulation.<br>Master of Science

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7

Hayes, David Paul. "Performance analysis of VSAT networks." Thesis, Virginia Tech, 1987. http://hdl.handle.net/10919/44052.

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<p>Very small aperture terminal (VSAT) networks offer a solution to the increasing demand for low-density voice and data communications. Spread Spectrum and single-channel-per-carrier (SCPC) transmission techniques work well for multiple access purposes while allowing the earth station antennas to remain small. Direct sequence code division multiple access (DS-CDMA) is the simplest spread spectrum technique to use in a VSAT network, since a frequency synthesizer is not required for each terminal. This thesis examines DS-CDMA and SCPC Ku-band VSAT satellite systems for low-density (64 kb

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8

Albanes, Stalin F. "1.2 GHz and 2.4 GHz LEO satellite communications." Thesis, Queensland University of Technology, 1995. https://eprints.qut.edu.au/35994/1/35994_Albanes_1995.pdf.

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This report outlines the steps taken to design and develop a 1.2 GHz and 2.4 GHz LEO satellite communication facility at the QUT satellite ground station to allow experimentation and communication links with low earth orbiting (LEO) satellites. The design, setup, construction, testing and installation of the antenna system required by the QUT satellite ground station to operate in the 1.2 GHz and 2.4 GHz frequency bands are described. Existing ground station capabilities and limitations were studied and a complete operational satellite station is suggested for the future to further perf

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9

Mafukidze, Harry D. "Design and development of a satellite ground station for water resource monitoring." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96102.

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Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: The SU Department of Forestry has the responsibility to monitor, assess and suggest management processes for water resources in some remote areas. The researchers need information on wind speed, wind direction, soil run-o , absorption and soil drainage. Most of the areas they are targeting have no form of GSM/GPRS coverage. This thesis presents the design and development of a Zigbee based wireless sensor network to send data from distributed sensor nodes to a ground station, all in a remote area. The ground station in tur

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10

Barry, Richard Malan. "Design of a distributed satellite ground system." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52180.

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Thesis (MEng)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: This thesis describes the development of a distributed ground support system to be used in the small satellite program at the University of Stellenbosch. A literature study was done to determine the current trends in ground support design. These trends are presented together with an analysis of the SUNSAT groundstation software. New technologies in the field of distributed systems are discussed and used in the design of a distributed ground support system. The design centres around a servicesbased architecture where s

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11

Runyon, Ginger R. "Parallel processor architecture for a digital beacon receiver." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/41422.

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Tsiakas, Panagiotis. "Adaptive load balancing routing algorithms for the next generation wireless telecommunications networks." Thesis, Brunel University, 2009. http://bura.brunel.ac.uk/handle/2438/7509.

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With the rapid development of wireless networks, mesh networks are evolving as a new important technology, presenting a high research and commercial interest. Additionally, wireless mesh networks have a wide variety of applications, offering the ability to provide network access in both rural and urban areas with low cost of maintenance. One of the main functionalities of a wireless mesh network is load balancing routing, which is the procedure of finding the best, according to some criteria, routes that data need to follow to transfer from one node to another. Routing is one of the state-of-t

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13

Lim, Woo Lip. "Handover for high altitude platform station UMTS." Thesis, University of Surrey, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250939.

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14

Wu, Qinlin. "Narrowband IoT Networks with Unmanned Aerial Base Stations." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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UAV is widely used in civil applications such as environmental hazards monitoring, traffic management and pollution monitoring, all of those contribute to smart city development. Thanks to its high mobility and feasibility, UAVs can be employed as a base station, gathering data from IoT devices distribute in a certain area during its flight. In this case, an appropriate trajectory and suitable parameters set is necessary to achieve better performance. This thesis studies a scenario of NB-IoT machine-type communication network served by an unmanned aerial base station (UAB). In this scenari

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15

Rabie, Neil. "Energy management in a telecommunications environment with associated energy and cost modelling of HVAC." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-11102005-122948/.

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Foo, Yu Chiann. "Call admission control for high altitude platform station UMTS." Thesis, University of Surrey, 2002. http://epubs.surrey.ac.uk/689/.

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17

Vernon, Anthony Michael. "Network planning and optimisation for adaptive antenna base station systems." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368721.

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18

Dahlberg, Oskar. "Low-dispersive Leaky-wave Antennas: A Viable Approach for Fifth Generation (5G) mmWave Base Station Antennas." Thesis, KTH, Elektroteknisk teori och konstruktion, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244458.

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In this work, a method to achieve reduced beam-squint in fully metallic leaky-wave antennas is proposed and its applicability for high frequency, high gain, base station antennas in future communication networks is indicated. The antenna is built in gap waveguide technology, where the fundamental mode is allowed to leak by removal of one of the waveguide walls. The leakage is varied along the structure for reduced side lobes and a stable radiation pattern is obtained by coupling the leaked energy from the waveguide through a dispersive prism-lens. The gap waveguide is formed as a groove, sided

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19

Creighton, Kathleen M. "A Fault Management System (FMS) architecture for the Naval Computer and Telecommunicatons Area Master Stations (NCTAMS)." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA339160.

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Thesis (M.S. in Information Technology Management) Naval Postgraduate School, Sept. 1997.<br>Thesis advisors, Carl R. Jones, William J. Haga. Includes bibliographical references (p. 165-169). Also Available online.

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Carissimi, Alexandre da Silva. "ATHAPASCAN-0 : exploitation de la multiprogrammation légère sur grappes de multiprocesseurs." Phd thesis, reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1999. http://tel.archives-ouvertes.fr/tel-00004814.

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L'accroissement d'efficacité des réseaux d'interconnexion et la vulgarisation des machines multiprocesseurs permettent la réalisation de machines parallèles à mémoire distribuée de faible coût: les grappes de multiprocesseurs. Elles nécessitent l'exploitation à la fois du parallélisme à grain fin, interne à un multiprocesseur offert par la multiprogrammation légère, et du parallélisme à gros grain entre les différents multiprocesseurs. L'exploitation simultanée de ces deux types de parallélisme exige une méthode de communication entre les processus légers qui ne partagent pas le même espace d'

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21

Liu, Van-chee, and 廖宏智. "A feasibility study and business proposal for a new comer of CT2 cordless telephone operating company." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1992. http://hub.hku.hk/bib/B31265455.

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22

Erasmus, J. M. (Johan Michiel). "Design of a mobile field station for LEO satellite communications." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51677.

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Thesis (MEng)--University of Stellenbosch, 2000.<br>ENGLISH ABSTRACT: This document describes the breadboard design and practical evaluation of a mobile field station, capable of communicating with the SUNSAT micro satellite. A study of existing satellite communication systems employing LEO satellites, as well as the physical phenomena, influencing the VHF communication link between earth and such satellites was done and used to determine the specifications needed for a functional field station. The design entailed work on different building blocks like a receiver, transmitter and mode

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23

Larsson, Joachim. "CPU Load Control of LTE Radio Base Station." Thesis, Linköpings universitet, Reglerteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-123499.

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A radio base station (RBS) may become overloaded if too many mobile devices communicate with it at the same time. This could happen at for instance sport events or in the case of accidents. To prevent CPU overload, the RBS is provided with a controller that adjusts the acceptance rate, the maximum number of connection requests that can be accepted per time interval. The current controller is tuned in real radio base stations and the procedure is both time consuming and expensive. This, combined with the fact that the mobile data usage is predicted to increase puts more pressure on today's syst

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Ferretti, Danila. "6G Enabled UAVs: UE or Base Station?" Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22439/.

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This thesis proposes and studies an algorithm to assess the issue of changing the role of a UAV inside a network, from User Equipment (UAV-UE) to Base Station (UAV-BS). Despite the great advantages of the use of drones as BS, there are challenges that cannot be ignored, such as the backhaul capacity constraint that, for different amounts of traffic, might be an issue. For this reason, the algorithm developed in the proposed simulator takes into account the backhaul constraint. The main focus of this thesis is on a static Matlab simulator, working in an urban, noise-limited scenario, with two

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25

Hollis, J. B. "An investigation into the design and performance of base station antenna diversity in digital mobile radio networks." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260278.

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26

Ferreira, Silva Luiz Fernando. "US Cold War foreign policy and satellite communication : the case of earth station network build-up in Brazil and Argentina." Thesis, University of Sussex, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360520.

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27

Pinnock, William Jacob Amadeus. ""Your information station": A Case study of rural radio in the 21st century." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/2115.

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The study examined how the introduction of high-speed internet into a rural community affected audience members' use of their local radio station. A qualitative case study was guided by uses and gratifications and niche theory. The author conducted interviews with KMMR FM audience members in Malta, Montana, to investigate how the introduction of high-speed internet impacted listener habits. Twenty participants who either listened to or produced content for KMMR FM were interviewed. The author performed a thematic analysis of different uses for the radio guided by typologies created by Rubin (1

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28

Rangineni, Kiran. "Multihop Concept in Cellular Systems." Thesis, University of Gävle, Department of Technology and Built Environment, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-700.

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<p>We are very thirsty in terms of everything to fulfil our needs in a sophisticated way, and this leads me choose the so called master thesis titled “Multihop Concept in Cellular Systems”.</p><p>This thesis introduces an approach towards the integration of relaying or multihop scheme in the next generation of cellular networks. In a multihop cellular architecture, the users send their data to the base station via relay station or with direct communication to the base station. These relay stations can either be the nomadic, fixed at specific location or users’ mobile station (i.e. mobile relay

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Crooks, Heather R. "Transatlantic relations the role of nationalism in multinational space cooperation." Thesis, Monterey, Calif. : Naval Postgraduate School, 2009. http://handle.dtic.mil/100.2/ADA501117.

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Thesis (M.A. in Security Studies (Europe and Eurasia))--Naval Postgraduate School, June 2009.<br>Thesis Advisor(s): Abenheim, Donald. "June 2009." Description based on title screen as viewed on July 13, 2009. Author(s) subject terms: NASA, European Space Agency, ESA, International Cooperation, Transatlantic Relations, Nationalism, INTELSAT, Ulysses, Galileo, SOFIA, ISS, International Space Station, Constellation, Aurora, Vision for Space Exploration, Moon, Mars. Includes bibliographical references (p. 85-95). Also available in print.

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Mollén, Christopher. "High-End Performance with Low-End Hardware : Analysis of Massive MIMO Base Station Transceivers." Doctoral thesis, Linköpings universitet, Kommunikationssystem, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-143455.

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Massive MIMO (multiple-input–multiple-output) is a multi-antenna technology for cellular wireless communication, where the base station uses a large number of individually controllable antennas to multiplex users spatially. This technology can provide a high spectral efficiency. One of its main challenges is the immense hardware complexity and cost of all the radio chains in the base station. To make massive MIMO commercially viable, inexpensive, low-complexity hardware with low linearity has to be used, which inherently leads to more signal distortion. This thesis investigates how the deg

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Nwup, Emineimo Kennedy, and Adesola Idris Akande. "Evaluation of the pre IEEE 802.11s RFC : Aspects of the Design and Implementation of the Mesh Station with RA-OLSR in the C-Core." Thesis, Blekinge Tekniska Högskola, Avdelningen för telekommunikationssystem, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3883.

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The demand for ubiquitous networks has pushed the designs of networks all the way. The requirement for access point to be integrated into IEEE 802.3 standard and other networks has always been a sore point in the limitation of wireless coverage of IEEE 802.11 standard networks. Wireless Mesh Network (WMN) is expected to be the future of the next generation wireless network. It is experiencing a fast growing development due to its attractive features which includes high reliable connectivity, easy deployment, self healing, self configuring, flexible network expansion etc. Hence the mobility of

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Tsukada, Manabu. "Gestion des communications dans les systèmes de transport intelligents coopératifs." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2011. http://tel.archives-ouvertes.fr/tel-00706187.

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Les systèmes de transport intelligents (STI) coopératifs sont des systèmes où les véhicules, l'infrastructure routière, les centres de contrôle de trafic et d'autres entités échangent des informations afin d'assurer une meilleure sécurité routière, l'efficacité du trafic et le confort des usagers de la route. Cet échange d'information doit s'appuyer sur une référence d'architecture de communication commune. C'est dans ce but que l'architecture de station STI a été spécifié par l'ISO et l'ETSI. Le concept de cette architecture de référence permet aux stations STI-véhicules et stations STI-infra

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Binderová, Vanda. "Vliv telekomunikačních vysílačů na estetickou hodnotu krajinného rázu." Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-161852.

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The thesis deals with the influence of telecommunication transmitters on the aesthetic value of landscape. It uses both environmental and sociological approach. Subject of investigation is the relationship between the aesthetic stimulus (landscape) and the recipient (man). For the analysis, Scenic Beauty Estimation Method is used as a psychological procedure which measures aesthetic preferences and allows adequately assess how society perceives the presence of various types of telecommunication transmitters in the landscape, including the so-called camouflage. Analysis also includes a comparis

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Vaickelionis, Egidijus. "Saulės šviesos elektrinių naudojimo telekomunikacinėse sistemose galimybių tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120528_132306-83091.

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Šiame darbe atlikti konteinerinio tipo automatinės telekomunikacijų stoties (ATS), elektros energijos poreikių tyrimai. Tyrimų metu nustatyta, kad ATS kuri teikia fiksuoto ryšio paslaugas 250 vartotojų ir interneto prieigos paslaugas 156 vartotojams, per metus sunaudoja apie 6582 kWh elektros energijos, iš kurios apie 24 % (1550 kWh) sunaudojama įrangos kondicionavimui. Tyrimais nustatyta, kad elektros energijos suvartojimas tiesiškai priklauso nuo aplinkos oro temperatūros. Ištyrus ATS elektros energijos vartojimo ir saulės energijos kaitos dinamiką statistiniais metodais, nustatyta, kad apie

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Rokos, Lukáš. "Vysokofrekvenční jednotka pro přenosnou monitorovací stanici." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399508.

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The thesis describes methods for spectrum monitoring, which are used by the Czech telecommunication office. The thesis describes a design of an RF unit for a portable monitoring station and its potential use. The RF unit consists of several devices, which are connected. Devices like an antenna, a rotator, a rotator control unit, coaxial switches, an amplifier and attenuator were chosen as commercially available devices. It is also described, why were these devices chosen. Other devices such as filters, a control unit for the RF unit and a power supply were designed. The RF unit is controlled b

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Lin, Hung-cheng, and 林宏成. "A study of regulation of mobile telecommunication base stations." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/93188304153752747169.

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碩士<br>元智大學<br>資訊社會學研究所<br>96<br>Taiwan is carrying out the policy of telecommunications liberalization. The industry of mobile telecommunications has had a problem on installing base stations. Mobile companies often faced protests of inhabitants and their neighbors. Construction regulations and local governments also made it difficult to set up base stations. This thesis is concluded with the following findings: 1. From the perspective of the Constitution, the power to regulate mobile telecommunications base stations belongs to the central government, not local governments. 2. Every law has i

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Engelbrecht, Jacobus Johannes. "Methods to measure and limit electromagnetic interference, with reference to power systems and satellite earth stations." Thesis, 2009. http://hdl.handle.net/10210/2163.

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M.Ing.<br>This thesis investigates why electromagnetic interference (EMI) and electromagnetic compatibility (EMC) problems exist and how EMI is generated, measured and limited. This investigation is done with reference to power systems and satellite earth stations. To understand the full extend of EMI generation from power systems on satellite earth stations, it was necessary to do a study of EMI, in order to understand EMI in its simplest form. This study consists of the following work: •A background study investigates the components of EMI, how EMI are generated and manifest in electric syst

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Liou, Dung-Yun, and 劉東昀. "The Study of Public-Private Partnerships on the Business Sustainable Development: The Case Study of Telecommunication Base Stations." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/68405972030026777136.

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碩士<br>國立臺北大學<br>公共行政暨政策學系<br>95<br>Business Sustainable Development (BSD) has been an influence on Taiwan’s future. It could become a key indicator for national competition. Public Private Partnerships (PPPs) play an important role on BSD in the future. BSD has been implemented by the cooperation among public sectors, enterprises and NGOs. PPPs can be the most effective approach for local sustainable development. This thesis focuses on BSD which has been promoting by the partnerships set up from the government, National Communication Commissions (NCC), and the telecommunications enterprise an

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Wilmans, Jared. "Design of a medium access protocol and scheduling algorithm for multimedia traffic over a DVB-RCS satellite link using a cross-layer approach." Thesis, 2010. http://hdl.handle.net/10413/5841.

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Satellite networks provide an alternative to terrestrial networks where cost and lack of infrastructure are driving parameters. For a satellite network to be cost effective one needs to be able to increase the efficiency of the network: this is accomplished by focusing on the parameters that affect the performance of the system and improving on them where possible. The factors affecting the network performance include the capacity, the propagation delay, the protocol used, and the channel error rate, among others. There are various ways to implement a satellite network depending on the satelli

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Liao, Yu-cheng, and 廖游成. "The Mobile Telecommunication Radio Base Station Construction System Approach to Project Management -the Case Study of Some Telecommunication Company." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/83830009044119783074.

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碩士<br>正修科技大學<br>經營管理研究所<br>97<br>Taiwan's mobile communications industry the private industry and opening up the application for business since 1997 to the present. The convenience of mobile communications has gradually changed people's life. According to National Communications Commission (National Communications Commission, referred to as NCC) statistics, January 2009 mobile phone users in Taiwan up to 25 million,In order to enable mobile phone users to good quality communication, the mobile phone system operators around the building in Taiwan mobile base station. Sustained as a result of th

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Vasishta, Anuj. "Optimal Relay Station Placement in Broadband Wireless Access Networks." Thesis, 2012. http://hdl.handle.net/10012/6949.

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With the development of IEEE 802.16j multihop relay protocol, the requirement to enhance the network capacity in a wireless network has been met e ectively. In this thesis, we study the capacity enhancement problem for a broadband wireless access network which is achieved by optimal placement of Relay Stations (RSs) along with the presence of a Base Station (BS) and multiple Candidate Positions (CPs). We present a mixed integer programming formulation for the crucial task of RS placement. Weighted objective is also explored to include preferential RS placement. The proposed formulations are so

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Brinca, Alexandrina Carreira. "Proteção de Estações de Telecomunicações contra incêndios florestais." Master's thesis, 2020. http://hdl.handle.net/10316/93887.

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Dissertação de Mestrado Integrado em Engenharia Mecânica apresentada à Faculdade de Ciências e Tecnologia<br>Os incêndios florestais são catástrofes que devastam o nosso país todos anos, colocando as populações em perigo e provocando um grande impacto social, económico e ambiental.Os grandes incêndios que ocorreram, no nosso país, em 2017, demonstraram, da pior forma, que as infraestruturas dos sistemas de telecomunicações não possuíam a proteção e resiliência necessárias para enfrentar catástrofes desta natureza.Este trabalho tem como objetivo otimizar uma barreira térmica, de um estudo anter

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Krishnamurthy, Vaidyanathan. "Microgrid availability during natural disasters." Thesis, 2014. http://hdl.handle.net/2152/26937.

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A common issue with the power grid during natural disasters is low availability. Many critical applications that are required during and after natural disasters, for rescue and logistical operations require highly available power supplies. Microgrids with distributed generation resources along with the grid provide promising solutions in order to improve the availability of power supply during natural disasters. However, distributed generators (DGs) such as diesel gensets depend on lifelines such as transportation networks whose behavior during disasters affects the genset fuel delivery system

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Irvin, Matthew W. "Radio station market concentration and programming diversity: the effect of the Telecommunications Act of 1996 on local radio markets /." 2006. http://www.lib.ncsu.edu/theses/submitted/etd-06062006-122601/unrestricted/etd.pdf.

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Bassoo, Vandana. "A digital up-conversion architecture for future high efficiency wireless base stations." Thesis, 2010. https://vuir.vu.edu.au/16051/.

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Over the past few years, there has been a growing need for wireless communications with higher data rates and ubiquitous coverage, and these must be achieved at reduced cost and with a lower carbon footprint. This evolution in wireless demand places a big burden on transmitter architectures. The need for higher efficiency has stimulated research into the potential replacement of current linear power amplifiers (PAs) by switch mode power amplifiers (SMPAs) at cellular frequencies. The radio frequency (RF) PA currently accounts for a significant part of the cost, and most of the power requirem

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Vasconcelos, Dino Gonçalves. "Electric vehicle smart charging." Master's thesis, 2020. http://hdl.handle.net/10400.13/3006.

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In recent years, the number of electric vehicles (EVs) has been increasing. It will play more and more important role in the power grid operation because of its storage features, where charging and discharging control strategies and construction of the charging facilities are the priorities to be solved in this field. At the same time, the availability of the charging infrastructures is still limited and provides a promising application area for communication and control research. This thesis focuses on the control of the energy status offered by the buildings/houses providing a power m

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