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Dissertations / Theses on the topic 'Terrestrial-satellite networks'

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1

Dai, Lillian Lei 1978. "Capacity dimensioning and routing for hybrid satellite and terrestrial networks." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87822.

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2

MOHEDDINE, AYA. "Integrated Satellite-terrestrial networks for IoT: LoRaWAN as a Flying Gateway." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1069071.

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When the Internet of Things (IoT) was introduced, it causes an immense change in human life. Recently, different IoT emerging use cases, which will involve an even higher number of connected devices aimed at collecting and sending data with different purposes and over different application scenarios, such as smart city, smart factory, and smart agriculture. In some cases, the terrestrial infrastructure is not enough to guarantee the typical performance indicators due to its design and intrinsic limitations. Coverage is an example, where the terrestrial infrastructure is not able to cove
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Ali, Muhammad. "Load balancing in heterogeneous wireless communications networks : optimized load aware vertical handovers in satellite-terrestrial hybrid networks incorporating IEEE 802.21 media independent handover and cognitive algorithms." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/6307.

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Heterogeneous wireless networking technologies such as satellite, UMTS, WiMax and WLAN are being used to provide network access for both voice and data services. In big cities, the densely populated areas like town centres, shopping centres and train stations may have coverage of multiple wireless networks. Traditional Radio Access Technology (RAT) selection algorithms are mainly based on the 'Always Best Connected' paradigm whereby the mobile nodes are always directed towards the available network which has the strongest and fastest link. Hence a large number of mobile users may be connected
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4

ZAMPOGNARO, FRANCESCO. "Satellite and terrestrial network integration." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1297.

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Il presente lavoro di testi descrive le attività di ricerca relative all'integrazione di reti terrestri e satellitari. Gli aspetti architetturali, protocollari e di sistema sono analizzati, seguiti da proposte di migliorie e nuovi approcci che sono discussi e validati per mezzo di simulazioni, test su piattaforma di emulazione basata su Linux e sistemi veri.<br>This Ph.D. thesis represents the outcomes of the research activities performed on the integration of satellite and terrestrial networks. After a deep analysis on architectures, protocols, scenarios and existing projects several new prop
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5

Arcand, Simon Carleton University Dissertation Engineering Systems and Computer. "Load sharing in an integrated satellite - terrestrial cellular network." Ottawa, 1995.

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6

Dakkak, M. Rabih. "Random access procedure in Non-Terrestrial 5G Networks." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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The goal of non-terrestrial networks (NTN) is to complement terrestrial 5G networks by providing enhanced coverage and service continuity for unserved areas of 5G terrestrial networks. One of the pivotal factors in the effective deployment of mobile satellite systems in the 5G network is to maximize the utilization of the current technology in terrestrial systems, to lower the implementation costs. The efficient design and integration of NTN to 5G systems depend on the consideration of some unique features of satellite communication systems, such as large propagation delays and large Doppler
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7

Loo, Suem Ping. "System Design of an Integrated Terrestrial-Satellite Communications Network for Disaster Recovery." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9956.

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This thesis describes a possible integrated terrestrial-satellite network system for disaster recovery and response. The motivation of this thesis was based on the adjacent spectrum allocations between the Virginia Tech terrestrial Local Multiple Distribution Service (LMDS) system and a Ka-band satellite system, and potentially being able to provide as an additional Ka-band satellite network backbone to the Virginia Tech terrestrial LMDS system for better and faster communications deployments. The Spaceway satellite system¡¦s design parameters were adopted typically for a Ka-band satellite s
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8

Arroio, Ana Carolina Machado. "Technological opportunities for Brazilian social development : an examination of low Earth orbit satellite deployment." Thesis, University of Sussex, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323018.

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9

Hussein, Mohammed. "Energy efficiency in LEO satellite and terrestrial wired environments." Phd thesis, Toulouse, INPT, 2016. http://oatao.univ-toulouse.fr/15960/1/Hussein_Mohammed.pdf.

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To meet an ever-growing demand for advanced multimedia services and to support electronic connectivity anywhere on the planet, development of ubiquitous broadband multimedia systems is gaining a huge interest at both academic and industry levels. Satellite networks in general and LEO satellite constellations in particular will play an essential role in the deployment of such systems. Therefore, as LEO satellite constellations like Iridium or IridiumNEXT are extremely expensive to deploy and maintain, extending their service lifetimes is of crucial importance. In the main part of this thesis, w
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10

Mendoza, Montoya Jesús Fabián. "Satellite integration in 5G : contribution on network architectures and traffic engineering solutions for hybrid satellite-terrestrial mobile backhauling." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/666793.

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The recent technological advances in the satellite domain such as the use of High Throughput Satellites (HTS) with throughput rates that are magnitudes higher than with previous ones, or the use of large non- Geostationary Earth Orbit (GEO) satellites constellations, etc, are reducing the price per bit and enhancing the Quality of Service (QoS) metrics such as latency, etc., changing the way that the capacity is being brought to the market and making it more attractive for other services such as satellite broadband communications. These new capabilities coupled with the advantages offered by s
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11

Grubinger, Michael, and Felix Strohmeier. "AUTONOMOUS ACQUISITION OF ENVIRONMENTAL DATA IN A GLOBAL NETWORK ENVIRONMENT." International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/607597.

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International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>This paper presents the results of a feasibility study undertaken by the University of Salzburg (Austria), investigating the autonomous acquisition of environmental data in a global network. A suggested application which is used as the basis of this paper is a volcano monitoring system which would be able to track the activity of a volcano and act as a disaster warning system. The background Volcano observation data required for such a system is covered, before di
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12

Bouttier, Elie Bernard. "Livraison de contenus sur un réseau hybride satellite / terrestre." Thesis, Toulouse, INPT, 2018. http://www.theses.fr/2018INPT0056/document.

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L’augmentation et le renforcement des usages d’Internet rend nécessaire l’évolution des réseaux existants. Cependant, on constate de fortes inégalités entre les zones urbaines, bien desservies et qui concentrent l’essentiel des investissements, et les zones rurales, mal desservies etdélaissées. Face à cette situation, les utilisateurs de ces zones se tournent vers d’autres moyensd’accès, et notamment vers les accès Internet par satellite. Cependant, ces derniers souffrentd’une limitation qui est le délai important induit par le temps de propagation du signal entre la terre et l’orbite géostati
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13

Chang, Chao-Hsu, and 張朝旭. "Dynamic Routing Strategies for Broadband Satellite-Terrestrial Networks." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/33209492060604755826.

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博士<br>國立中央大學<br>資訊工程研究所<br>92<br>The rapid proliferation of Internet over recent years has extremely impacted the service offering. Issues of limited capacity, non-global coverage, routing and congestion challenged the availability of desired services. Particularly, burst and tremendous mass of multimedia traffic might unexpectedly congest the terrestrial network to restrict the provisions of services with desired Quality of Services (QoS). The resource utilization is then degraded. Furthermore, this unexpected congestion together with limited network bandwidth would severely challenge the pro
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14

Yao, Yung-Cheng, and 姚永正. "Researches on Cooperative Communication Performance over Satellite-Terrestrial Wireless Networks." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/70883855638764488346.

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博士<br>國立中正大學<br>電機工程研究所<br>101<br>Multimedia Broadcast Multicast Service (MBMS) will be an important service in future mobile communication systems. Since satellite system has large coverage area and capability for broadcasting, satellite-terrestrial wireless network, satellite system combined with terrestrial network, will be an efficient way to support MBMS. With the aid of simpler transmitter and receiver, cooperative communication assisted by relay node can achieve diversity gain similar to multiple input multiple output (MIMO) technique. This dissertation focused on system performance
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15

Jhou, Singhong, and 周星宏. "Studies on Amplify-and-Forward Cooperative Communications in Hybrid Satellite-Terrestrial Networks." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/25959669824514658551.

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碩士<br>國立暨南國際大學<br>通訊工程研究所<br>99<br>Cooperative communication uses the concept of space diversity to follow the multiple-input multiple-output communication system. The uses of relay stations make the transmission more reliable and higher data rate. Compared with the multi-input multi-output system, cooperative communication can reduce the hardware design complexity and cost. In recent years the development of wireless communication, the cooperative multi-hop relay station assisted technologies improve the performance and services range of wireless systems, and the use of relay stations a virtu
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16

Lai, Yuting, and 賴玉庭. "Cooperative Relaying Strategies with Distributed Space-Time Coding in Hybrid Satellite-Terrestrial Networks." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/93587563555553767730.

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碩士<br>國立暨南國際大學<br>通訊工程研究所<br>99<br>Hybrid Satellite-Terrestrial Network (HSTN) is the integration of the Satellite Communication System (SCS) and the Ground Communication Network (GCN). It can provide a communication platform without dead zone for Multimedia Broadcast and Multicast Service (MBMS) by using the advantages of the SCS and the GCN. The cooperative relaying strategies for terrestrial stations make it possible to achieve the diversity gain similar to the Multiple Input Multiple Output (MIMO) technique with less complexity of transmitters and receivers. The Space-time Coding (STC) tec
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17

Cheng, Yongqiang, Kai J. Xu, Anju Pillai, et al. "A realization of integrated satellite-terrestrial communication networks for aeronautical services via joint radio resource management." 2013. http://hdl.handle.net/10454/9637.

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Despite air travel has not grown as predicted, air travel is still expected to rise to just less than doubling the current figure by 2030. This creates an urging need to develop more efficient Air Traffic Management (ATM) solutions. Around the globe, research and development initiatives have been launched to modernize the air traffic control infrastructures. These modernized infrastructures will be built around continuous information gathering, sharing and transferring of data between aircraft and air navigation service providers and airports ground infrastructure, which will be difficult for
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18

Ali, Muhammad, Prashant Pillai, and Yim Fun Hu. "Load-aware radio access selection in future generation wireless networks." 2013. http://hdl.handle.net/10454/9601.

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No<br>In the telecommunication networks the introduction of Next Generation Wireless Networks (NGWN) has been described as the most significant change in wireless communication. The convergence of different access networks in NGWN allows generalized mobility, consistency and ubiquitous provision of services to mobile users. The general target of NGWN is to transport different types of information like voice, data, and other media like video in packets form like IP. The NGWNs offer significant savings in costs to the operators along with new and interesting services to the consumers. Major chal
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19

Ali, Muhammad, Prashant Pillai, Yim Fun Hu, Kai J. Xu, Yongqiang Cheng, and Anju Pillai. "Fuzzy based CRRM for load balancing in heterogenous wireless networks." 2013. http://hdl.handle.net/10454/9602.

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No<br>The ever increasing user QoS demands and emergence of new user applications make job of network operators and manufacturers more challenging for efficiently optimisation and managing radio resources in radio the radio resources pools of different wireless networks. A group of strategies or mechanisms which are collectively responsible for efficient utilisation of radio resources available within the Radio Access Technologies (RAT) are termed as Radio Resource Management (RRM). The traditional RRM strategies are implemented independently in each RAT, as each RRM strategy considers attribu
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20

Chiang, Chung-Hua, and 江崇華. "Researches on Terrestrial Station Grouping Method in Satellite-Terrestrial Wireless Network." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/14794191029753785105.

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博士<br>國立中正大學<br>電機工程研究所<br>102<br>In this thesis, we have made an analysis of the previous research on terrestrial station grouping method in satellite-terrestrial cooperative wireless network, and proposed a new grouping method for the network. The proposed method not only increases the total system channel capacity but also saves unnecessary power wastage in the terrestrial stations. The new method focuses on finding out the best two terrestrial stations and on adjusting appropriate frequencies so that the subsequent process of the Space-Time Coding could improve the effect of channel fading
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21

JAYOUSI, SARA. "Cooperative strategies and IP QoS management in satellite terrestrial network architectures." Doctoral thesis, 2012. http://hdl.handle.net/2158/606747.

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22

Conforto, P., C. Tocci, V. Schena, et al. "End-to-End QoS and Global Mobility Management in an Integrated Satellite/Terrestrial Network." 2004. http://hdl.handle.net/10454/3757.

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No<br>For decades, the development of the Internet was driven by the purpose of providing applications to non-mobile users. No specific Quality of Service (QoS) requirement is necessary, other than ensuring reliability in the end-to-end data transfers. As such, best effort service model was deemed more than appropriate to satisfy the users' needs. Nevertheless, the scenario has changed in the last few years. A new population of nomadic users, who requires access to Internet services regardless of their location and mode of transportation is growing, while new typologies of Internet application
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23

Cheng, Yongqiang, Kai J. Xu, and Yim Fun Hu. "A redundancy software design for joint radio resource management system in a satellite-terrestrial based aeronautical communication network." 2013. http://hdl.handle.net/10454/9636.

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No<br>This paper presents a Master/Slave redundancy mechanism for the airborne Integrated Modular Radio to improve the reliability of the joint radio resource management (JRRM) system. The proposed mechanism adopts keep-alive heart beat messages and real time information synchronization to ensure a smooth switchover in the event of a platform failure. To enhance the scalability and decoupling of the system, the proposed hot swap solution makes the JRRM switchover transparent to both the higher layers and the lower layers. The experiment results and the performance obtained from the test-bed ha
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24

Mukherjee, Amritendu. "Effect of urbanisation & population density on groundwater in India using satellite remote sensing data." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4987.

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This work investigates the relationship of urbanization, population density and meteorological variables (temperature & precipitation) on groundwater storage for the selected study regions in India. Variations in groundwater storage are analyzed using Gravity Recovery and Climate Experiment (GRACE) derived variations of Terrestrial Water Storage (ΔTWS). In the first part of the thesis, we have examined and established the correspondence between GRACE ΔTWS and groundwater level for selected study sites across different geographic regions in India using Linear regression, Support Vector Regre
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