摘要
针对无线携能(SWIPT)中在节点能量受限情况下的缓存队列机制半双工(HD)中继选择的问题,研究了SWIPT中能效优先的缓存队列机制中继节点选择方案和所提策略的系统能效。给出了基于能效优先的缓存队列机制SWIPT最佳接收/转发中继节点选择方案。数值仿真结果表明,所提策略可以有效降低SWIPT网络的中断概率,实现缓存队列SWIPT中能效与中断性能的折中。
Aiming at the problem of buffer-aided half-duplex （HD） relay selection in simultaneous wireless information and power transfer（SWlPT） with energy constraint, energy-efficiency priority based buffer-aided relay selection scheme in SWIPT was investigated. Moreover, SWIPT system energy efficiency was studied, and an appropriate mathematical model was constructed to perform energy efficiency based buffer-aided optimal receive/transmit relay selection in SWIPT. Numerical results show that the proposed scheme effectively reduces SWIPT outage probability and achieves the tradeoffbetween energy efficiency and outage performance in buffer-aided SWIPT.
作者
洪鑫龙
许晓荣
姚英彪
HONG Xinlong, XU Xiaorong, YAO Yingbiao(Hangzhou Dianzi University, Hangzhou 310018, Chin)
出处
《电信科学》
2018年第3期67-75,共9页
Telecommunications Science
基金
杭州电子科技大学"电子科学与技术"浙江省一流学科A类开放基金项目:"无线携能网络中缓存队列机制中继选择与资源调度方案研究"(No.GK178800207001/024)
杭州电子科技大学通信工程学院专业学位研究生科研创新基金重点项目:"无线携能网络中缓存队列机制中继选择方案研究"(No.GK178800208018)
2017年度杭州电子科技大学"优秀骨干教师支持计划"人才项目
浙江省科协青年科技人才培育工程资助项目(No.2016YCGC009)~~
关键词
无线携能
缓存队列机制中继选择
能效优先
能量收集
中断性能
SWIPT, buffer-aided relay selection, energy-efficiency priority, energy harvesting, outage performance
