Performance Analysis of Cascaded RIS-Assisted Two-Way Wireless Communication System

IF 4.4 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-03-28 DOI:10.1109/LCOMM.2025.3573621

Huihan Liu;Pu Miao;Kang Song

引用次数: 0

Abstract

In this letter, a cascaded reconfigurable intelligent surfaces (RIS)-assisted two-way communication system is proposed, and its performance is explored under

$\kappa -\mu $

fading channels, supporting simultaneous information exchange between the transmitter and receiver. To more accurately reflect practical communication scenarios, the impacts of transceiver hardware impairments (HWI), phase errors, path loss, and loop interference (LI) are taken into account. Approximate closed-form expressions for the outage probability (OP) and ergodic capacity (EC) are derived, and the accuracy of the theoretical formulas is validated through Monte Carlo simulations. The results demonstrate that the effects of HWI, phase errors, path loss, and LI degrade the communication performance of the system. In addition, the EC of the proposed system is improved by approximately twice the one-way system, highlighting the significant advantage of two-way communication in enhancing spectral efficiency.

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级联ris辅助双向无线通信系统的性能分析

本文提出了一种级联可重构智能表面（RIS）辅助的双向通信系统，并对其在$\kappa -\mu $衰落信道下的性能进行了研究，以支持发送端和接收端同时进行信息交换。为了更准确地反映实际通信场景，考虑了收发器硬件损坏（HWI）、相位误差、路径损耗和环路干扰（LI）的影响。导出了停运概率（OP）和遍历容量（EC）的近似封闭表达式，并通过蒙特卡罗仿真验证了理论公式的准确性。结果表明，HWI、相位误差、路径损耗和LI的影响会降低系统的通信性能。此外，所提出的系统的EC提高了大约两倍的单向系统，突出了双向通信在提高频谱效率方面的显著优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.