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Resource Efficiency Optimization for Robust Beamforming in Multi-Beam Satellite Communications
IEEE Transactions on Vehicular Technology, 2021The tradeoff between energy efficiency (EE) and spectral efficiency (SE) provides a new perspective for the transmit design in satellite communications (SATCOM), i.e., one can jointly optimize the system EE and SE of the SATCOM system.
Wenjin Wang +6 more
semanticscholar +1 more source
2002
Publisher Summary Communications satellites are required to illuminate the earth with radio signals and their orbits are chosen according to the size and location of the part of the earth's surface they are supposed to light up. A satellite orbiting the earth is continuously pulled by a centripetal force toward the center of the earth.
Steve Winder, Joseph J. Carr
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Publisher Summary Communications satellites are required to illuminate the earth with radio signals and their orbits are chosen according to the size and location of the part of the earth's surface they are supposed to light up. A satellite orbiting the earth is continuously pulled by a centripetal force toward the center of the earth.
Steve Winder, Joseph J. Carr
openaire +3 more sources
OTFS Enabled LEO Satellite Communications: A Promising Solution to Severe Doppler Effects
IEEE NetworkWith the advantages of low cost and flexible deployment, low earth orbit satellite (LEO-Sat) communications have received widespread attentions, such as providing global wireless access with enhanced data rates in future 6G networks.
Jia Shi +6 more
semanticscholar +1 more source
Deep Reinforcement Learning-based Satellite Handover Scheme for Satellite Communications
International Conference on Wireless Communications and Signal Processing, 2021Low Earth orbit (LEO) satellites have attracted increasing attention in recent years due to their wide coverage area and flexible connectivity. However, the high speed mobility of LEO satellites imposes huge challenges for satellite handover in LEO ...
Jie Wang +5 more
semanticscholar +1 more source
Dynamic Beam Coverage for Satellite Communications Aided by Movable-Antenna Array
IEEE Transactions on Wireless CommunicationsThe low-earth orbit (LEO) satellite network has been recognized as a promising technology to enable the ubiquitous coverage and massive connectivity for future sixth-generation (6G) mobile communications.
Lipeng Zhu +4 more
semanticscholar +1 more source
IEEE Network
The fifth generation (5G) wireless communication systems have been deployed around the world, and the sixth generation (6G) networks have become the focus of research interest, whose technical roadmap has been put forward. Low earth orbit (LEO) satellite
Xuewen Luo, Hsiao-Hwa Chen, Qing Guo
semanticscholar +1 more source
The fifth generation (5G) wireless communication systems have been deployed around the world, and the sixth generation (6G) networks have become the focus of research interest, whose technical roadmap has been put forward. Low earth orbit (LEO) satellite
Xuewen Luo, Hsiao-Hwa Chen, Qing Guo
semanticscholar +1 more source
Broadband LEO Satellite Communications: Architectures and Key Technologies
IEEE wireless communications, 2019This article aims to provide a comprehensive overview for key issues in broadband LEO satellite communication systems. First of all, the network architecture is introduced, which is the basis of the whole system.
Yongtao Su +5 more
semanticscholar +1 more source
Satellite engineering for communications satellites
1999This chapter outlines the design drivers of a geostationary satellite before describing the individual subsystems of a three-axis-stabilised satellite. Orbit fundamentals and a brief overview of launch vehicles are also covered.
J. J. Pocha, P. Harris
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3D Channel Tracking for UAV-Satellite Communications in Space-Air-Ground Integrated Networks
IEEE Journal on Selected Areas in Communications, 2020The space-air-ground integrated network (SAGIN) aims to provide seamless wide-area connections, high throughput and strong resilience for 5G and beyond communications. Acting as a crucial link segment of the SAGIN, unmanned aerial vehicle (UAV)-satellite
Jiadong Yu +3 more
semanticscholar +1 more source
Current Legal Problems, 1971
Abstract This chapter outlines the major institutional as well as legal problems involved in the use of communications satellites for commercial or instructional purposes, especially those in the organization and activities of INTELSAT. These activities break new grounds, inasmuch as they constitute the first experiment in the commercial
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Abstract This chapter outlines the major institutional as well as legal problems involved in the use of communications satellites for commercial or instructional purposes, especially those in the organization and activities of INTELSAT. These activities break new grounds, inasmuch as they constitute the first experiment in the commercial
openaire +1 more source