Decode-and-forward relaying with full-duplex wireless information and power transfer
Decode-and-forward relaying with full-duplex wireless information and power transfer
复制标题
通过全双工无线信息和电力传输进行解码和转发中继
DOI：
10.1049/iet-com.2016.1371
复制
发表时间：
2017
影响因子：
1.6
通讯作者：
He Chen
中科院分区：
文献类型：
--
作者：
Su Yinjie;Jiang Lingge;He Chen
在这项研究中，作者认为解码和转发（DF）中继协议与全双工无线信息和功率传输，并研究其中断性能。在该协议中，一个协作中继可以将信息传输到目的地，并同时从源收集能量。因此，中继所使用的部分能量可以通过中继全双工操作中存在的自环信道来回收。在自环信道衰落的情况下，推导出中断概率的近似表达式;在自环信道非衰落的情况下，推导出中断概率的精确闭式表达式。此外，为了优化中断性能，还提供了功率分配方案。分析了自环信道对DF中继中断性能的影响，结果表明，由于该协议具有全双工工作和自能量回收的特点，其中断性能优于现有的基于功率分配和基于时间交换的DF中继协议，具有上级的优点。提供模拟来验证作者的结果。
In this study, the authors consider a decode-and-forward (DF) relaying protocol with full-duplex wireless information and power transfer, and investigate its outage performance. In this protocol, a cooperative relay can transmit the information to the destination and harvest the energy from the source simultaneously. Thus, part of the energy used by the relay can be recycled through the self-loop channel that exists in the relay's full-duplex operation. An approximated expression for the outage probability is derived under the scenario where the self-loop channel is fading, and then the authors derive an exact closed-form expression for the outage probability under a scenario where the self-loop channel is non-fading. Moreover, to optimise the outage performance, a power allocation scheme is also provided. The authors analyse the effect of self-loop channel on the outage performance, and show that, benefiting from the full-duplex operation and self-energy recycling, the considered protocol is superior to the existing power splitting-based and time switching-based DF relaying protocols, in terms of outage performance. Simulations are provided to validate the authors' results.