RIS Assisted AmBc Communication Over Spatially Correlated Channels

IF 2.3 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE journal of radio frequency identification Pub Date : 2024-04-26 DOI:10.1109/JRFID.2024.3394063
Anish Kumar Gupta;Punitkumar Bhavsar
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Abstract

This article proposes incorporation of reconfigurable intelligent surfaces (RIS) with ambient backscatter (AmBc) communication. The aim is to strengthen the radio links between ambient source to backscatter device (BD) and from BD to cooperative receiver (CR). The analysis considers correlated Rician channels and incorporates hardware imperfection (HWI) modeled by von-Mises distribution. We derive a closed form expression of the outage probability which is validated through Monte Carlo (MC) simulations. The findings show improvement in outage probability for a deliberate selection of parameters of the proposed RIS assisted AmBc communication system. In addition, the importance of correlated-channel behavior is considered and analyzed for its effect on the outage probability performance of the proposed system.
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空间相关信道上的 RIS 辅助 AmBc 通信
本文提出将可重构智能表面(RIS)与环境反向散射(AmBc)通信相结合。其目的是加强从环境源到反向散射设备(BD)以及从BD到合作接收器(CR)之间的无线电链路。分析考虑了相关的里岑信道,并纳入了以冯-米塞斯分布为模型的硬件不完善(HWI)。我们得出了中断概率的封闭式表达式,并通过蒙特卡罗(MC)模拟进行了验证。研究结果表明,在有意选择拟议的 RIS 辅助 AmBc 通信系统参数的情况下,中断概率有所改善。此外,还考虑了相关信道行为的重要性,并分析了其对拟议系统中断概率性能的影响。
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