Relay-Aided Multi-User OFDM Relying on Joint Wireless Power Transfer and Self-Interference Recycling
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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
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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
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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