Results 11 to 20 of about 4,335 (249)
Management of MEC Service and Optimization of Mission Migration in LEO Satellite Networks
天地一体化信息网络, 2022 Low earth orbit (LEO) satellites play an important role in the communication of earth observation and wide area coverage because of their advantages of short transmission delay and low deployment cost.Due to limited size and weight of LEO satellite ...
Zhihui LIU +5 more
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A survey on networking key technologies for LEO satellite network
Dianxin kexue, 2023 With the continuous development of information and communication technology, the requirements for expanding network coverage and reducing communication delay are becoming higher and higher.Low earth orbit (LEO) satellite networking, as a network system ...
Ruihong JIANG +3 more
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Validation on Residual Variation and Covariance Matrix of USSTRATCOM Two Line Element [PDF]
Journal of Astronomy and Space Sciences, 2012 Satellite operating agencies are constantly monitoring conjunctions between satellites and space objects. Two line element (TLE) data, published by the Joint Space Operations Center of the United States Strategic Command, are available as raw data for a ...
Hyeonjeong Yim, Daewon Chung
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LEO Satellite Communications with Massive MIMO [PDF]
ICC 2020 - 2020 IEEE International Conference on Communications (ICC), 2020 Low earth orbit (LEO) satellite communications are expected to be incorporated in future wireless networks to provide global wireless access with enhanced data rates. Massive multiple-input multiple-output (MIMO) techniques, though widely used in terrestrial communication systems, have not been applied to LEO satellite communication systems.
Li You 0001 +5 more
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Massive MIMO LEO Satellite Communications System
天地一体化信息网络, 2022 Extending massive multiple-input multiple-output (MIMO) technique to low earth orbit (LEO) satellite communication systems enables satellites to implement fl exible beamforming, which can make full use of the spatial degrees of freedom of massive MIMO ...
Kexin LI, Li YOU, Xiqi GAO
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Applied Sciences, 2022 Low Earth orbit (LEO) satellites that can be used as computing nodes are an important part of future communication networks. However, growing user demands, scarce channel resources and unstable satellite–ground links result in the challenge to design an ...
Juan Wang +3 more
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On-Demand Routing in LEO Satellite Systems [PDF]
2007 IEEE International Conference on Communications, 2007 In this paper, a location-assisted on-demand routing (LAOR) protocol for low earth orbit (LEO) satellite systems is proposed and evaluated. This protocol can be viewed as a variant of the well-known ad-hoc on-demand distance vector (AODV) routing protocol, tailored to the requirements imposed by the characteristics of LEO satellite systems' topology ...
Stylianos Karapantazis +2 more
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Traffic simulation of broadband LEO constellation satellite communication system
Dianzi Jishu Yingyong, 2019 Due to the rapid development of small satellite technology，and the advantages of low earth orbit satellite(LEO) with low delay and low propagation loss as compared with the traditional geosynchronous orbit satellite(GEO), the broadband LEO constellation ...
Xu Jun, Lu Wei, Zhang Gengxin
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Performance Analysis of LEO Satellite Networks [PDF]
, 2002 We present an analytical model for computing call blocking probabilities in a LEO satellite network that carries voice calls. Both satellite-fixed and earth-fixed constellations with inter-orbit links and hand-offs are considered. The model is analyzed approximately by decomposing it into sub-systems.
Abdul Halim Zaim +2 more
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A Collaborative Inference Algorithm in Low-Earth-Orbit Satellite Network for Unmanned Aerial Vehicle
Drones, 2023 In recent years, the low-Earth-orbit (LEO) satellite network has achieved considerable development. Moreover, it is necessary to introduce edge computing into LEO networks, which can provide high-quality services, such as worldwide seamless low-delay ...
Zhengqian Xu +5 more
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