计算机科学
继电器
反向散射(电子邮件)
传输(电信)
能量收集
蒙特卡罗方法
无线
电子工程
吞吐量
能量(信号处理)
高效能源利用
正确性
频道(广播)
诺玛
计算机网络
电信
算法
电信线路
功率(物理)
电气工程
工程类
物理
数学
统计
量子力学
作者
Shubham Bisen,Justin Jose,Vimal Bhatia,Amit Kumar Mishra,Kwonhue Choi
标识
DOI:10.1109/lcomm.2023.3313157
摘要
Wireless-powered relaying with backscatter assistance is a promising technique to increase the coverage of self-sustainable energy-constrained devices with improved energy efficiency. In this letter, we propose a non-orthogonal multiple access (NOMA) based coordinated direct and relay transmission system, which utilizes a hybrid backscatter relay. The hybrid backscatter relay consists of passive information transmission via backscatter, energy harvesting (EH), and active information reception. We present a novel and simple hybrid protocol where the relay operates in EH mode and the active mode in the first phase, whereas in the second phase, the relay operates in passive mode. The letter investigates the outage probability of the backscatter NOMA systems, considering realistic assumptions of nonlinear EH, channel estimation errors, and residual hardware impairments. Moreover, to gain deeper insights into the considered system, asymptotic outage probability, system throughput, and energy efficiency are derived. Finally, the Monte Carlo simulations verifies correctness of the theoretical analysis.
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