集成 RIS 和反向散射 NOMA 通信网络的隐蔽性能分析

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

Physical Communication Pub Date : 2024-10-17 DOI:10.1016/j.phycom.2024.102523

Sen Wang , Baowang Lian , Musen Liu , Junyao Zhang , Varun G. Menon , Xingwang Li

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引用次数: 0

摘要

在这项工作中，我们深入研究了可重构智能表面（RIS）共生环境反向散射通信（AmBC）系统的隐蔽性能。为了阻碍监视器的探测，信号源故意同时发射信息和干扰信号。具体来说，我们推导出了检测错误概率（DEP）和中断概率的闭式表达式。然后，通过优化功率分配系数和每个区域反射元件的数量，最大化有效隐蔽率（ECR）。最后，我们研究了所考虑系统的能效（EE）。仿真结果验证了分析的准确性，强调了 RIS 分段共生 AmBC 系统可以通过提高干扰消除能力和划分最佳 RIS 区域来实现更好的隐蔽性。

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Covert performance analysis of integrated RIS and backscatter NOMA communication networks

In this work, we delve into the covertness performance of the reconfigurable intelligent surface (RIS) symbiotic ambient backscatter communication (AmBC) systems, where the RIS is partitioned into two zones to serve covert and public users. To impede with the monitor’s detection, the source deliberately transmits both information and interference signals. Specifically, we derive closed-form expressions for the detection error probability (DEP) and outage probabilities. Subsequently, the effective covert rate (ECR) is maximized by optimizing the power allocation factor and the number of each zone reflective elements. Finally, we investigate the energy efficiency (EE) of the considered system. Simulation results validate the accuracy of the analysis, underscoring that the RIS-segmented symbiotic AmBC systems can achieve better covertness by improving the interference cancellation capability and dividing the optimal RIS zones.

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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.