Performance of a Reconfigurable Intelligent Surface-Assisted D2D Communication Network Using NOMA: An Overlay Scenario

IF 1.8 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Communication Systems Pub Date : 2025-07-31 DOI:10.1002/dac.70202

P. Baskar, Abhijit Bhowmick, Yogesh Kumar Choukiker

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Abstract

A reconfigurable intelligent surface (RIS)-assisted device-to-device (D2D) network is studied in this paper where devices are cognitive radio (CR). D2D devices communicate with each other in overlay mode using cellular user (CU) spectrum and non-orthogonal multiplexing (NOMA) scheme. The RIS is strategically positioned to enhance D2D communication performance and to reduce interference effectively. It is considered that the RIS-associated channels are Rician faded while the direct channels are Rayleigh faded; that is, a mixed channel approach is considered. A comprehensive analytical framework is established to describe the signal model and performance parameters from source to destination with the perfect and imperfect successive interference cancellation (SIC). To find the optimal position of RIS, an algorithm is also developed. It focuses on two key performance indicators: outage and throughput. The closed-form expressions of outage and throughput are developed. A simulation platform is developed, and extensive simulations are carried out to study the performance indicators. It investigates the impact of various network parameters, such as sensing time, an imperfection in SIC, interference threshold, and so forth, on outage and throughput.

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基于NOMA的可重构智能表面辅助D2D通信网络的性能：覆盖场景

本文研究了一种可重构智能表面（RIS）辅助的设备到设备（D2D）网络，其中设备为认知无线电（CR）。D2D设备使用蜂窝用户（CU）频谱和非正交复用（NOMA）方案在覆盖模式下相互通信。RIS的战略定位是提高D2D通信性能并有效减少干扰。认为ris相关通道为瑞利衰落通道，直接通道为瑞利衰落通道；也就是说，考虑了混合通道方法。建立了一个全面的分析框架，描述了具有完全和不完全连续干扰抵消（SIC）的信号模型和从源到目的地的性能参数。为了找到RIS的最优位置，还开发了一种算法。它主要关注两个关键性能指标：中断和吞吐量。建立了停机和吞吐量的封闭表达式。开发了仿真平台，对性能指标进行了大量的仿真研究。它研究了各种网络参数，如感知时间、SIC缺陷、干扰阈值等，对中断和吞吐量的影响。

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来源期刊

International Journal of Communication Systems 工程技术-电信学

CiteScore

5.90

自引率

9.50%

发文量

323

审稿时长

7.9 months

期刊介绍： The International Journal of Communication Systems provides a forum for R&D, open to researchers from all types of institutions and organisations worldwide, aimed at the increasingly important area of communication technology. The Journal''s emphasis is particularly on the issues impacting behaviour at the system, service and management levels. Published twelve times a year, it provides coverage of advances that have a significant potential to impact the immense technical and commercial opportunities in the communications sector. The International Journal of Communication Systems strives to select a balance of contributions that promotes technical innovation allied to practical relevance across the range of system types and issues. The Journal addresses both public communication systems (Telecommunication, mobile, Internet, and Cable TV) and private systems (Intranets, enterprise networks, LANs, MANs, WANs). The following key areas and issues are regularly covered: -Transmission/Switching/Distribution technologies (ATM, SDH, TCP/IP, routers, DSL, cable modems, VoD, VoIP, WDM, etc.) -System control, network/service management -Network and Internet protocols and standards -Client-server, distributed and Web-based communication systems -Broadband and multimedia systems and applications, with a focus on increased service variety and interactivity -Trials of advanced systems and services; their implementation and evaluation -Novel concepts and improvements in technique; their theoretical basis and performance analysis using measurement/testing, modelling and simulation -Performance evaluation issues and methods.