Separate Channel Estimation and Data Detection for Semi-Passive RIS-Empowered Massive MIMO
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2024.3407514
Abstract: This letter investigates the channel estimation and data detection for semi-passive reconfigurable intelligent surface (RIS) assisted millimeter wave massive multiple-input-multiple-output systems. We first achieve the coarse user-to-RIS and RIS-to-base station channels by leveraging partial active… read more here.
Keywords: channel estimation; data detection; ris; estimation data ... See more keywords
Joint Bayesian Channel Estimation and Data Detection for OTFS Systems in LEO Satellite Communications
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3179389
Abstract: Lower earth orbit (LEO) satellites play an important role in the integration of space and terrestrial communication networks, which typically encounter high-mobility scenarios. It has been shown that orthogonal time frequency space (OTFS) modulation performs… read more here.
Keywords: satellite communications; leo satellite; estimation data; channel estimation ... See more keywords
Message-Passing Receiver Design for Joint Channel Estimation and Data Decoding in Uplink Grant-Free SCMA Systems
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2018.2878571
Abstract: The conventional grant-based network relies on the handshaking between the base station and active devices to achieve dynamic multi-user scheduling, which may result in large signaling overheads as well as system latency. To address those… read more here.
Keywords: receiver design; joint channel; channel estimation; estimation data ... See more keywords