scholarly journals Study on application of CMA to land mobile LEO satellite communication systems based on a deterministic channel model

2001 ◽  
Vol 20 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Chang Qing Xu ◽  
Choi Look Law ◽  
Susumu Yoshida
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Channel Model ◽  
Leo Satellite

scholarly journals A Hybrid Beamforming Design for Massive MIMO LEO Satellite Communications

2021 ◽  
Vol 2 ◽  
Author(s):  
Joan Palacios ◽  
Nuria González-Prelcic ◽  
Carlos Mosquera ◽  
Takayuki Shimizu ◽  
Chang-Heng Wang
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Channel Model ◽  
Satellite Communications ◽  
Mobile Terminal ◽  
Low Earth Orbit ◽  
Special Focus ◽  
Codebook Design ◽  
Hybrid Beamforming ◽  
Leo Satellite

5G and future cellular networks intend to incorporate low earth orbit (LEO) satellite communication systems (SatCom) to solve the coverage and availability problems that cannot be addressed by satellite-based or ground-based infrastructure alone. This integration of terrestrial and non terrestrial networks poses many technical challenges which need to be identified and addressed. To this aim, we design and simulate the downlink of a LEO SatCom compatible with 5G NR, with a special focus on the design of the beamforming codebook at the satellite side. The performance of this approach is evaluated for the link between a LEO satellite and a mobile terminal in the Ku band, assuming a realistic channel model and commercial antenna array designs, both at the satellite and the terminal. Simulation results provide insights on open research challenges related to analog codebook design and hybrid beamforming strategies, requirements of the antenna terminals to provide a given SNR, or required beam reconfiguration capabilities among others.

Measuring time-varying propagation effects for LEO satellite communication systems

2000 ◽  
Author(s):  
Darby Cooper ◽  
Jeffrey Lasater ◽  
Robert Sternowski ◽  
William Byrd
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Time Varying ◽  
Measuring Time ◽  
Propagation Effects ◽  
Leo Satellite

Application of HBF with Adaptive Port Mapping for LEO Satellite Communication Systems

2021 ◽  
Author(s):  
Roman Semernya ◽  
Shi Xueliang ◽  
Vladimir Lyashev ◽  
Vadim Revutsky ◽  
Zhou Yue ◽  
...  
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Leo Satellite

scholarly journals On the Security of LEO Satellite Communication Systems: Vulnerabilities, Countermeasures, and Future Trends

2022 ◽  
Author(s):  
Pingyue Yue ◽  
Jianping An ◽  
Jiankang Zhang ◽  
Gaofeng Pan ◽  
Shuai Wang ◽  
...  
Keyword(s):  
Communication System ◽  
Communication Systems ◽  
Satellite Communication ◽  
Future Trends ◽  
Comprehensive Review ◽  
Satellite Communication System ◽  
Development Status ◽  
System A ◽  
Leo Satellite

<div>In view of the development status of the security of LEO satellite communication system, a comprehensive review, induction, and summary is carried out.<br></div>

A Digital Signal Recovery Technique Using DNNs for LEO Satellite Communication Systems

2020 ◽  
pp. 1-1 ◽  
Author(s):  
Yufeng Zhang ◽  
Zhugang Wang ◽  
Yonghui Huang ◽  
Wei Wei ◽  
Gert Frolund Pedersen ◽  
...  
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Digital Signal ◽  
Signal Recovery ◽  
Recovery Technique ◽  
Leo Satellite

Terminal location method with NLOS exclusion based on unsupervised learning in 5G‐LEO satellite communication systems

2020 ◽  
Vol 38 (5) ◽  
pp. 425-436
Author(s):  
Feng Zhu ◽  
Teer Ba ◽  
Yuan Zhang ◽  
Xiqi Gao ◽  
Jiang Wang
Keyword(s):  
Unsupervised Learning ◽  
Communication Systems ◽  
Satellite Communication ◽  
Location Method ◽  
Leo Satellite

Study on ISL network structure in LEO satellite communication systems

2007 ◽  
Vol 61 (7-8) ◽  
pp. 648-658 ◽  
Author(s):  
Ryutaro Suzuki ◽  
Yasuhiko Yasuda
Keyword(s):  
Network Structure ◽  
Communication Systems ◽  
Satellite Communication ◽  
Leo Satellite
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