Robust THP Design for Energy Efficiency of Multibeam Satellite Systems with Imperfect CSI
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2019.2956129
Abstract: In this letter, we investigate a robust zero-forcing (ZF) Tomlinson-Harashima Precoding (THP) scheme for multibeam satellite downlink systems to improve the energy efficiency (EE) when the channel state information (CSI) at the transmitter is imperfect.… read more here.
Keywords: energy efficiency; multibeam satellite;
Proportionally Fair Robust Beamforming for Multicast Multibeam Satellite Systems
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3118567
Abstract: We study the proportionally fair beamforming design for the downlink channel of multibeam satellite systems. Due to the channel phase uncertainty caused by oscillators and the long round trip delay, the beamforming design needs to… read more here.
Keywords: multibeam satellite; satellite systems; optimization problem; proportionally fair ... See more keywords
Robust Beamforming in Multibeam Satellite Systems With Non-Orthogonal Multiple Access
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2020.3007192
Abstract: In this letter, we investigate the beamforming optimization problem in a non-orthogonal multiple access (NOMA) based multibeam satellite system. The design key is to minimize the transmit power on-board the multibeam satellite system with the… read more here.
Keywords: optimization; multibeam satellite; non orthogonal; optimization problem ... See more keywords
Joint Beam-Hopping Scheduling and Coverage Control in Multibeam Satellite Systems
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2022.3223507
Abstract: Beam-hopping scheduling technology is a crucial technology for improving the performance of resource-constrained multibeam satellite (MBS) systems. However, it is challenging to dynamically match the communication demands of the terrestrial cells with the beam transmission… read more here.
Keywords: multibeam satellite; beam; coverage; hopping scheduling ... See more keywords
Multiuser Detection in Multibeam Satellite Systems: Theoretical Analysis and Practical Schemes
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Communications"
DOI: 10.1109/spawc.2015.7227093
Abstract: We consider the rates achievable by a user in a multibeam satellite system for unicast applications and propose alternatives to the conventional single-user symbol-by-symbol detection applied at user terminals. Single-user detection is known to suffer… read more here.
Keywords: detection multibeam; detection; multibeam satellite; multiuser detection ... See more keywords
SLNR-Based Secure Energy Efficient Beamforming in Multibeam Satellite Systems
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2022.3190238
Abstract: Motivated by the fact that both security and energy efficiency are the fundamental requirements and design targets of future satellite communications, this letter investigates secure energy efficient beamforming in multibeam satellite systems, where the satellite… read more here.
Keywords: energy; beamforming multibeam; efficient beamforming; secure energy ... See more keywords
Superior Iterative Detection for Co-Channel Interference in Multibeam Satellite Systems
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2020.3029809
Abstract: Aggressive frequency reuse alleviates the frequency-spectrum shortage in multibeam satellite systems targeting multi-Terabits-per-second throughput but creates harsh co-channel interference (CCI) environment. For forward-link, state-of-the-art receivers at user terminals assume memoryless CCI to avoid exponential increase… read more here.
Keywords: satellite; satellite systems; multibeam satellite; interference ... See more keywords
High-Capacity, Weather-Resilient MIMO Feeder Links in Multibeam Satellite Systems
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3177779
Abstract: Next-generation satellite systems targeting multi-Terabit-per-second throughput require surmounting layers of design challenges. For feeder links, extremely high frequency (EHF) band is desired to overcome spectrum limitations and reduce equipment size. Multiple gateways are utilized to… read more here.
Keywords: feeder links; satellite systems; mimo; mimo feeder ... See more keywords
Secure Beamforming and Jamming for Multibeam Satellite Systems With Correlated Wiretap Channels
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2020.3018083
Abstract: Multibeam satellite communication plays an important role in future integrated satellite-terrestrial communication systems. However, the large area covered by the satellite beams makes itself vulnerable to be wiretapped, especially for the cases that eavesdroppers are… read more here.
Keywords: beamforming jamming; jamming multibeam; satellite; multibeam satellite ... See more keywords
Combined Robust Beamforming With Uplink RSMA for Multibeam Satellite Systems
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2022.3181050
Abstract: In this paper, a robust uplink transmission scheme combining beamforming (BF) with rate splitting multiple access is proposed to improve the spectrum efficiency of a multibeam satellite system. By assuming that only imperfect channel state… read more here.
Keywords: multibeam; combined robust; robust beamforming; beamforming uplink ... See more keywords