Limited Channel Feedback Scheme for Reconfigurable Intelligent Surface Assisted MU-MIMO Wireless Communication Systems
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3174095
Abstract: This paper proposes the efficient downlink channel state information (CSI) feedback scheme for reconfigurable intelligent surface (RIS) assisted multi-user multi-input multi-output (MU-MIMO) wireless communication systems. RIS is the state-of-the-art technology that is extensively researched as… read more here.
Keywords: feedback scheme; communication systems; channel feedback;
Channel Feedback Based on AoD-Adaptive Subspace Codebook in FDD Massive MIMO Systems
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2018.2849755
Abstract: Channel feedback is essential in frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems. Unfortunately, prior work on multiuser MIMO has shown that the feedback overhead scales linearly with the number of base station (BS)… read more here.
Keywords: subspace codebook; aod adaptive; channel feedback; codebook ... See more keywords
A Covariance-Based Hybrid Channel Feedback in FDD Massive MIMO Systems
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2019.2946815
Abstract: In this paper, a novel covariance-based channel feedback mechanism is investigated for frequency division duplexing (FDD) massive multi-input multi-output (MIMO) systems. The concept capitalizes on the notion of user statistical separability which was hinted in… read more here.
Keywords: mimo systems; fdd massive; channel feedback; covariance ... See more keywords
Outage Probability and Ergodic Capacity of Distributed Transmit Beamforming With Imperfect CSI
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2022.3143135
Abstract: In this paper, we present unified performance analysis framework of distributed transmit beamforming (DTB) with residual phase errors which arise from various sources such as imperfect synchronization and channel feedback quantization. More specifically, we derive… read more here.
Keywords: distributed transmit; feedback; phase errors; channel feedback ... See more keywords