Relay-Aided Multi-User OFDM Relying on Joint Wireless Power Transfer and Self-Interference Recycling
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2021.3120714
Abstract: Relay-aided multi-user OFDM is investigated under which multiple sources transmit their signals to a multi-antenna relay during the first relaying stage and then the relay amplifies and forwards the composite signal to all destinations during… read more here.
Keywords: self interference; relay aided; aided multi; relay ... See more keywords
Reconfigurable Intelligent Surfaces Aided Multi-Cell NOMA Networks: A Stochastic Geometry Model
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2021.3126598
Abstract: By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems. To evaluate the benefits between RISs and NOMA, a downlink RIS-aided… read more here.
Keywords: geometry; intelligent surfaces; model; multi cell ... See more keywords
Channel Estimation for RIS-Aided Multi-User mmWave Systems With Uniform Planar Arrays
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3214892
Abstract: In this paper, we adopt a three-stage based uplink channel estimation protocol with reduced pilot overhead for an reconfigurable intelligent surface (RIS)-aided multi-user (MU) millimeter wave (mmWave) communication system, in which both the base station… read more here.
Keywords: channel estimation; ris aided; stage; aided multi ... See more keywords
Grouping Enhanced Cooperative Covert Communications in RIS-Aided Multi-User Systems
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DOI: 10.1109/tcomm.2024.3447911
Abstract: In this paper, we aim at reconfigurable intelligent surfaces (RIS) aided multi-user communication systems including multiple user pairs, where an important target user pair needs to guarantee covertness in the presence of an adversarial warden… read more here.
Keywords: ris aided; multi user; aided multi; covert communications ... See more keywords
IRS-Aided Multi-Cell Massive MIMO Systems With Impairments: SE Analysis and Optimization
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DOI: 10.1109/tcomm.2024.3516512
Abstract: We consider the uplink of a hardware-impaired intelligent-reflective surfaces (IRS)-aided multi-cell massive multiple-input multiple-output (mMIMO) system with mobile user equipments, whose channels age with time. We propose a novel distortion-and-aging-aware minimum-mean-square-error (DAA-MMSE) receiver that not… read more here.
Keywords: multi cell; irs aided; aided multi; mmse ... See more keywords
Dynamic Aerial Reconfigurable Intelligent Surface Aided Multi-Cell Multi-User Communications
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2024.3441093
Abstract: In aerial reconfigurable intelligent surface (RIS) aided networks, high line-of-sight (LoS) and agility characteristics provide favorable conditions for RIS reflection. However, this also introduces extra LoS RIS reflection interference, especially when aerial RIS is fixedly… read more here.
Keywords: multi cell; aided multi; reconfigurable intelligent; cell multi ... See more keywords