Precoding for Satellite Communications: Why, How and What next?
Precoding has stood out as a promising multi-user transmission technique to meet the emerging throughput demand of satellite communication systems while awaiting the technological maturity for exploiting higher bands. Precoding enables the reduction of interference among co-channel beams through spatial processing while promoting aggressive frequency reuse and improving spectral efficiency. Satellite systems offer multitude of system and service configurations, resulting in different precoder design methodologies. This article explores the motivation for the introduction of precoding, offers an insight to their theoretical development in a diverse scenarios and presents some avenues for future development.
Code (0)
등록된 구현이 없습니다.
Similar Papers 제목 키워드 기반
GNN-enabled Precoding for Massive MIMO LEO Satellite Communications
Low Earth Orbit (LEO) satellite communication is a critical component in the development of sixth generation (6G) networks. The integration of massive multiple-input multiple-output (MIMO) technology is being actively ex…
Computational EfficiencyGraph Neural NetworkLearning Model-Free Robust Precoding for Cooperative Multibeam Satellite Communications
Direct Low Earth Orbit satellite-to-handheld links are expected to be part of a new era in satellite communications. Space-Division Multiple Access precoding is a technique that reduces interference among satellite beams…
Deep Reinforcement LearningFlexible Robust Beamforming for Multibeam Satellite Downlink using Reinforcement Learning
Low Earth Orbit (LEO) satellite-to-handheld connections herald a new era in satellite communications. Space-Division Multiple Access (SDMA) precoding is a method that mitigates interference among satellite beams, boostin…
Deep Reinforcement Learningreinforcement-learningReinforcement LearningReinforcement Learning (RL)Optimal Linear Precoding Under Realistic Satellite Communications Scenarios
In this paper, optimal linear precoding for the multibeam geostationary earth orbit (GEO) satellite with the multi-user (MU) multiple-input-multiple-output (MIMO) downlink scenario is addressed. Multiple-user interferenc…
Downlink Transmit Design for Massive MIMO LEO Satellite Communications
This paper investigates the downlink (DL) transmit design for massive multiple-input multiple-output (MIMO) low-earth-orbit (LEO) satellite communication systems, where only the slow-varying statistical channel state inf…