no code implementations • 25 Oct 2022 • Zhangjie Peng, Tianshu Li, Cunhua Pan, Xianfu Lei, Shi Jin
This paper considers an active reconfigurable intelligent surface (RIS)-aided communication system, where an M-antenna base station (BS) transmits data symbols to a single-antenna user via an N-element active RIS.
no code implementations • 4 Dec 2021 • Zhangjie Peng, Tianshu Li, Cunhua Pan, Hong Ren, Jiangzhou Wang
In this letter, we investigate a reconfigurable intelligent surfaces (RIS)-aided device to device (D2D) communication system over Rician fading channels with imperfect hardware including both hardware impairment at the transceivers and phase noise at the RISs.
no code implementations • 22 Jul 2020 • Zhangjie Peng, Tianshu Li, Cunhua Pan, Hong Ren, Wei Xu, Marco Di Renzo
Simulation results verify the correctness of the obtained results and show that the proposed GA method has almost the same performance as the globally optimal solution.