Double-RIS assisted MIMO V2V channels: Modeling, simulation, and correlation statistics analysis

IF 2 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Physical Communication Pub Date : 2024-07-29 DOI:10.1016/j.phycom.2024.102458

Yuhan Wen , Beiping Zhou , Qian Zhang , Xuting Pan , Yue Zhang

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引用次数: 0

Abstract

In this paper, we propose a three-dimensional (3D) elliptical cylinder multiple-input multiple-output (MIMO) stochastic channel model assisted by double reconfigurable intelligent surfaces (RIS) for the vehicle-to-vehicle (V2V) propagation environment. The double-RIS is deployed on building surfaces to reduce signal attenuation and assist the mobile terminal (MT) in reflecting its signals towards the mobile receiver (MR). In the proposed channel model, we incorporate the complex channel impulse responses (CIRs) resulting from multi-path propagation for all four links, thereby deducing the complete channel matrix. Additionally, we derive statistical characteristics, including spatial cross-correlation functions (CCFs), temporal auto-correlation functions (ACFs), and frequency correlation functions (FCFs). Simulation results are presented to illustrate the propagation characteristics of the double-RIS assisted MIMO V2V elliptical cylinder channel model, which clearly indicate that the double-RIS outperforms the single-RIS in channel characteristics, underscoring the importance of introducing double-RIS into the V2V channel model.

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双 RIS 辅助 MIMO V2V 信道：建模、仿真和相关统计分析

本文针对车对车（V2V）传播环境，提出了一种由双可重构智能表面（RIS）辅助的三维（3D）椭圆圆柱体多输入多输出（MIMO）随机信道模型。双 RIS 部署在建筑物表面，以减少信号衰减，并帮助移动终端 (MT) 将信号反射到移动接收器 (MR)。在提议的信道模型中，我们纳入了所有四个链路的多路径传播产生的复杂信道脉冲响应（CIR），从而推导出完整的信道矩阵。此外，我们还推导出统计特征，包括空间交叉相关函数（CCF）、时间自相关函数（ACF）和频率相关函数（FCF）。仿真结果显示了双 RIS 辅助 MIMO V2V 椭圆形圆柱体信道模型的传播特性，清楚地表明双 RIS 在信道特性方面优于单 RIS，突出了在 V2V 信道模型中引入双 RIS 的重要性。

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

Physical Communication ENGINEERING, ELECTRICAL & ELECTRONICTELECO-TELECOMMUNICATIONS

CiteScore

5.00

自引率

9.10%

发文量

212

审稿时长

55 days

期刊介绍： PHYCOM: Physical Communication is an international and archival journal providing complete coverage of all topics of interest to those involved in all aspects of physical layer communications. Theoretical research contributions presenting new techniques, concepts or analyses, applied contributions reporting on experiences and experiments, and tutorials are published. Topics of interest include but are not limited to: Physical layer issues of Wireless Local Area Networks, WiMAX, Wireless Mesh Networks, Sensor and Ad Hoc Networks, PCS Systems; Radio access protocols and algorithms for the physical layer; Spread Spectrum Communications; Channel Modeling; Detection and Estimation; Modulation and Coding; Multiplexing and Carrier Techniques; Broadband Wireless Communications; Wireless Personal Communications; Multi-user Detection; Signal Separation and Interference rejection: Multimedia Communications over Wireless; DSP Applications to Wireless Systems; Experimental and Prototype Results; Multiple Access Techniques; Space-time Processing; Synchronization Techniques; Error Control Techniques; Cryptography; Software Radios; Tracking; Resource Allocation and Inference Management; Multi-rate and Multi-carrier Communications; Cross layer Design and Optimization; Propagation and Channel Characterization; OFDM Systems; MIMO Systems; Ultra-Wideband Communications; Cognitive Radio System Architectures; Platforms and Hardware Implementations for the Support of Cognitive, Radio Systems; Cognitive Radio Resource Management and Dynamic Spectrum Sharing.