Results 251 to 260 of about 3,108 (295)

A Network-Flows-Based Satellite Handover Strategy for LEO Satellite Networks

IEEE Wireless Communications Letters, 2021
This paper proposes a satellite handover strategy for the huge low earth orbit (LEO) satellite constellation. As the increasing of the constellation scale and the number of user terminals (UTs), the satellite handover becomes more complicated. Thus, we formulate the network-flows model of the satellite handover, and the handover UTs can access the ...
Senbai Zhang, Aijun Liu 0001, Chen Han 0004, Xiang Ding, Xiaohu Liang   +4 more
openaire   +1 more source

Holographic Metasurface-Based Beamforming for Multi-Altitude LEO Satellite Networks

IEEE Transactions on Wireless Communications
Low Earth Orbit (LEO) satellite networks are capable of improving the global Internet service coverage. In this context, we propose a hybrid beamforming design for holographic metasurface based terrestrial users in multi-altitude LEO satellite networks ...
Qingchao Li, Mohammed El-Hajjar, Harald Haas   +2 more
exaly   +2 more sources

QoS Routing for LEO Satellite Networks

2013
Since the population distribution on the earth surface is highly non-uniform, the traffic requirements are unbalanced in LEO (Low Earth Orbit) satellite networks, some ISLs(Inter-Satellite Link) of satellite networks are congested while others are underutilized.
Aida Nathalie Urquizo Medina, Qiang Gao 0010   +1 more
openaire   +1 more source

Satellite constellations for a multiple LEO satellite network

Electronics and Communications in Japan (Part III: Fundamental Electronic Science), 1993
AbstractRecently, research has been very active in communication networks that could service the entire globe by using multiple, low, earth‐orbiting satellites. This has been spurred on by progress in the field of digital communication technique, technical advances of satellite launching, and a decrease in the costs of small‐sized satellites.In this ...
Tomonori Usui, Tsutomu Kawabata, Yoshikuni Onozato, Ikuo Oka   +3 more
openaire   +1 more source

Datagram routing algorithm for LEO satellite networks

Proceedings IEEE INFOCOM 2000. Conference on Computer Communications. Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies (Cat. No.00CH37064), 2002
Satellite networks provide global coverage and support a wide range of services. Low-Earth-orbit (LEO) satellites provide short round-trip delays and are becoming increasingly important. One of the challenges in LEO satellite networks is the development of specialized and efficient routing algorithms.
Eylem Ekici, Ian F. Akyildiz, Michael D. Bender   +2 more
openaire   +1 more source

Packet Reordering Analysis for LEO Satellite Networks

2008 International Conference on Embedded Software and Systems, 2008
In this paper we study the influences of packet reordering on the throughput and link utilization in Low Earth Orbit (LEO) satellite networks. In the absence of any packet reordering, the throughput and link utilization remain high. Our results indicate that packet reordering combined with packet error can severely deteriorate the performance of ...
Guyin Wang, Junfeng Wang, Lu Liu, Guisheng Chen   +3 more
openaire   +1 more source

A Location Management Algorithm for LEO Satellite Networks

2013 12th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, 2013
Location management is a challenging issue for datagram service in LEO satellite constellation networks due to ceaseless satellite handover of land mobile nodes. With the aid of GEO satellites, a novel location management system is proposed. Mathematical analysis and simulations have been done to evaluate the performance of the proposed system.
Yanpeng Ma, Wei Peng 0005, Xiaofeng Wang 0002, Baokang Zhao, Jinshu Su, Chunqing Wu   +5 more
openaire   +1 more source

A Distributed Routing Algorithm for LEO Satellite Networks

2013 12th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, 2013
Datagram routing in inclined delta LEO satellite constellation networks is a challenge issue due to their fast-changing topologies. We propose a novel location-based routing algorithm to reduce the routing overhead. The simulation has been done for performance evaluation.
Yanpeng Ma, Wei Peng 0005, Wanrong Yu, Jinshu Su, Chunqing Wu, Guohong Zhao   +5 more
openaire   +1 more source

Multipath TCP over LEO satellite networks

2015 International Wireless Communications and Mobile Computing Conference (IWCMC), 2015
Low earth orbit (LEO) satellite networks like Iridium have played a pivotal role in providing ubiquitous network access services to areas without terrestrial infrastructure because of their potential for global coverage and high bandwidth availability. With low orbit and short range as compared to geostationary satellites, LEO satellites are accessible
Pengyuan Du, Xiao Li, You Lu 0001, Mario Gerla   +3 more
openaire   +1 more source

High performance routing in a LEO satellite network

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003, 2004
Satellite systems are designed as a backup system to the existing land based wireless systems. Because of the global coverage of the system it becomes more economic for the rural areas where there is no wired infrastructures of communication. Besides being more economic to the rural areas the satellite networks are not affected by the natural disasters
Roy Kucukates, Cem Ersoy
openaire   +1 more source