no code implementations • 19 Mar 2024 • Zhangjie Peng, Zhaotian Li, Ruijing Liu, Cunhua Pan, Feiniu Yuan, Jiangzhou Wang
We use long short-term memory to learn time correlation, which can help the neural network to improve the recovery quality of the compressed CSI.
no code implementations • 16 Feb 2024 • Zhangjie Peng, Zhibo Zhang, Cunhua Pan, Marco Di Renzo, Octavia A. Dobre, Jiangzhou Wang
Specifically, by exploiting the majorization-minimization approach, each subproblem is reformulated into a tractable surrogate problem, whose closed-form solutions are obtained by Lagrange dual decomposition approach and element-wise alternating sequential optimization method.
no code implementations • 17 Jun 2023 • Zhangjie Peng, Ruijing Liu, Cunhua Pan, Zhenkun Zhang, Jiangzhou Wang
In this paper, we consider an active reconfigurable intelligent surface (RIS)-aided unmanned aerial vehicle(UAV)-enabled simultaneous wireless information and power transfer(SWIPT) system with multiple ground users.
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 • 3 Sep 2022 • Zhangjie Peng, Ruisong Weng, Zhenkun Zhang, Cunhua Pan, Jiangzhou Wang
This paper investigates an active reconfigurable intelligent surface (RIS)-aided mobile edge computing (MEC) system.
no code implementations • 18 Aug 2022 • Hong Ren, Zhenkun Zhang, Zhangjie Peng, Li Li, Cunhua Pan
Then, we investigate the general scenario in which the RF signals are radiated during the flight, aiming to minimize the total energy consumption of the UAV by jointly optimizing the UAV's trajectory, flight time and the RIS's reflection coefficients.
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 • 23 Dec 2020 • Gui Zhou, Cunhua Pan, Hong Ren, Kezhi Wang, Zhangjie Peng
In this paper, we study the robust transmission design for a reconfigurable intelligent surface (RIS)-aided secure communication system in the presence of transceiver hardware impairments.
Information Theory Signal Processing Information Theory
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.
no code implementations • 9 Jun 2020 • Zhangjie Peng, Zhenkun Zhang, Cunhua Pan, Li Li, A. Lee Swindlehurst
Low-cost passive intelligent reflecting surfaces (IRSs) have recently been envisioned as a revolutionary technology capable of reconfiguring the wireless propagation environment through carefully tuning reflection elements.