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9 papers · 2 filters
Wireless Communication Using Metal Reflectors: Reflection Modelling and Experimental Verification
Zhi Yu, Chao Feng, Yong Zeng +2
Wireless communication using fully passive metal reflectors is a promising technique for coverage expansion, signal enhancement, rank improvement and blind-zone compensation, thank…
Secure Outage Analysis of RIS-Assisted Communications with Discrete Phase Control
Wei Shi, Jindan Xu, Wei Xu +2
This correspondence investigates a reconfigurable intelligent surface (RIS)-assisted wireless communication system with security threats. The RIS is deployed to enhance the secrecy…
Energy Efficient Train-Ground mmWave Mobile Relay System for High Speed Railways
Lei Wang, Bo Ai, Yong Niu +4
The rapid development of high-speed railways (HSRs) puts forward high requirements on the corresponding communication system. Millimeter wave (mmWave) can be a promising solution d…
Performance Analysis and Optimization for RIS-Assisted Multi-User Massive MIMO Systems with Imperfect Hardware
Zhangjie Peng, Xianzhe Chen, Cunhua Pan +2
The paper studies a reconfigurable intelligent surface (RIS)-assisted multi-user uplink massive multiple-input multiple-output (MIMO) system with imperfect hardware. At the RIS, th…
Multi-Pair D2D Communications Aided by An Active RIS over Spatially Correlated Channels with Phase Noise
Zhangjie Peng, Xue Liu, Cunhua Pan +2
This paper investigates a multi-pair device-to-device (D2D) communication system aided by an active reconfigurable intelligent surface (RIS) with phase noise and direct link. The a…
Deep Reinforcement Learning for RIS-aided Multiuser Full-Duplex Secure Communications with Hardware Impairments
Zhangjie Peng, Zhibo Zhang, Lei Kong +3
In this paper, we investigate a reconfigurable intelligent surface (RIS)-aided multiuser full-duplex secure communication system with hardware impairments at transceivers and RIS,…