Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 31 for “"satellite networks"”.
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Prediction-enhanced Routing in Disruption-tolerant Satellite Networks
… Networking) routing in dynamic LEO satellite constellations based on the prediction of contacts. The solution is developed with a clear focus on the requirements imposed by the 'Ring Road' use case, mandating a concept for dynamic contact prediction and its integration into a …
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System Analysis for Satellite Networks with Free-Space Optical Links
… and performances for free-space optical satellite networks (FSOSNs), including phasing parameter, optical satellite link budget, tradeoff between network latency and satellite transmission power, and network latency minimization based on satellite transmission power constraints. We …
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Performance in Multipath & High-Mobility Leveraging Terrestrial and Satellite Networks
… comparing the performance of terrestrial 5G networks (ATT, Verizon, T-Mobile) and the Starlink satellite network in high-mobility scenarios. The study evaluates key performance metrics, including throughput and latency, across six globally distributed server locations: Virginia, California, …
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An intelligent call admission control algorithm for load balancing in 5G-satellite networks
Cellular networks are projected to deal with an immense rise in data traffic, as well as an enormous and diverse device, plus advanced use cases, in the nearest future; hence, future 5G networks are being developed to consist of not only 5G but also different RATs integrated. In addition to 5G, the …
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INNER: interface-aware neighborhood routing in large-scale low-Earth-orbit satellite networks
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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IP Mobile Multicast over Next Generation Satellite Networks. Design and Evaluation of a Seamless Mobility Framework for IP Multicast Communications over a Multi-beam Geostationary Satellite Network
The inherent broadcast nature of satellites, their global coverage and direct access to a large number of subscribers give satellites unrivalled advantages in supporting IP multicast applications. A new generation of satellite systems that support regenerative on-board processors and multiple spot …
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MAC architecture for broadband satellite access systems
… from line feed as cable, fiber, or copper networks to wireless as radio or satellite networks. Broadband satellite access is a leading candidate to contribute to such development due to satellites' distinctive features of global coverage over single hops and distance insensitivity. However, …
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IP ROUTING AND KEY MANAGEMENT FOR SECURE MULTICAST IN SATELLITE ATM NETWORKS
Communication satellites offer an efficient way to extend IP multicast services for groups in wide-area networks. This poses interesting challenges for routing and security. Satellite networks can have wired and wireless links and different link-layer technologies like Ethernet and ATM. For …
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A Model for Development of a Telecommunications Satellite Network for Administrative, Educational and Other Purposes in a Private Organization
… resources to take advantage of communication satellites, private organizations with more modest means have not been provided with a plan for utilization of this new technology. The purpose of this study was to design a model for development of a telecommunications network which private …
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Mobile multimedia service provisioning with collective terminals in broadband satellite networks. An approach for systematic satellite communication system design for service provisioning to collective mobile terminals including: mobile satellite channel modelling, antenna pointing, hierarchical multi-service dimensioning and aeronautical system dimensioning.
… with provisioning of communication services via satellites for collectively mobile user groups in a heterogeneous network with several radio access technologies. The extended use of personalised user equipment beyond the coverage of one single terrestrial network by means of a satellite transport …
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QoS Provisioning for Multi-Class Traffic in Wireless Networks
… Quality of Service (QoS) guarantees in wireless networks. There is a growing demand for wireless networks to support all the services that are available on wired networks. These diverse services, such as email, instant messaging, web browsing, video conferencing, telephony and paging all place …
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Performance characteristics of a multiple use Ku-band satellite network
… for the terminal were being determined. Several satellite networks which can use the Ku-band earth station are explored in this thesis. System level designs are presented for each network. The anticipated performance of the network during clear sky conditions and during periods of rain fade …
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DREAM: A Theoretical Analysis
… and among many others. Unlike cellular or satellite networks, MANET do not rely on any form of pre-existing infrastructure. The mobility of nodes combined with the lack of infrastructure makes routing in MANET notoriously difficult. It was recently suggested that routing in MANET can use to …
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Resource allocation and scheduling for communication satellites with advanced transmission antennas
For multimedia and other data services over satellite networks, the efficient management of scarce satellite communication resources is critical for the economic competitiveness of the medium. To support a broad spectrum of users with small terminals at high data rates, narrow transmit spotbeams …
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New Security Paradigms for Spacecraft and Networks: Metrics, Testbeds, and Scalable Solutions
… mega-constellations comprising thousands of satellites promise global connectivity, linking directly to handheld devices on Earth. However, as government and commercial actors push further into space, the emerging heterogeneous networks that interconnect these systems face significant …
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Enhancing Satellite Constellations with Scalable Network Simulation and Rapid Passive Safety Assessment
… simulation with rapid collision assessment for satellite constellations. A key contribution is the introduction of a novel, rapid passive safety-checking method based on closed-form analysis of relative orbital elements and exact geometric envelopes. By mapping satellite dynamics to the …
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Proliferated Low Earth Orbit (pLEO) Satellite Constellation Handover Cost Analysis
… very true of proliferated Low Earth orbit (pLEO) satellite constellation networks in which both the satellite and the user are mobile with respect to each other. As satellites travel in their obits, they move into and out of ground users’ views every few minutes [4], and mobile users can move into …
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System Design of an Integrated Terrestrial-Satellite Communications Network for Disaster Recovery
… 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 …
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Dynamic power allocation and routing for satellite and wireless networks with time varying channels
Satellite and wireless networks operate over time varying channels that depend on attenuation conditions, power allocation decisions, and inter-channel interference. In order to reliably integrate these systems into a high speed data network and meet the increasing demand for high throughput and …
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