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基于WIPT的两路中继协作underlay认知无线电的性能分析
Performance analysis of two-way relay cooperation underlay cognitive radio networks based on WIPT
- 通信学报 2019年40卷第2期 页码：129-136
- 作者机构：
1. 湖南大学信息科学与工程学院，湖南 长沙 810012
2. 西藏大学工学院，西藏 拉萨 850000
- 作者简介：
[ "徐纪胜（1987- ），男，湖南常德人，湖南大学博士生，主要研究方向为无线通信、5G、认知无线电网络、绿色通信、博弈论。" ]
[ "曾凡仔（1971- ），男，湖南嘉禾人，博士，湖南大学教授、博士生导师，主要研究方向为无线通信、5G、认知无线电网络、绿色通信、博弈论。" ]
[ "李康（1993- ），女，湖南浏阳人，湖南大学硕士生，主要研究方向为无线通信、认知无线电网络、5G、绿色通信、博弈论。" ]
[ "李勇峰（1980- ），男，陕西洛南人，西藏大学副教授，主要研究方向为无线传感器网络、电路与系统设计和新能源利用。" ]
- 基金信息：国家自然科学基金资助项目(61370096);国家自然科学基金资助项目(61772184);西藏自治区自然科学基金资助项目(2016ZR-TU-02);西藏大学青年科研培育基金资助项目(ZDPJZK1606);西藏大学珠峰学者人才支持计划——杰出青年基金资助项目([2016]141)
DOI：10.11959/j.issn.1000-436x.2019041
中图分类号： TN925-
网络出版日期：2019-02，
纸质出版日期：2019-02-25
- 稿件说明：
移动端阅览
徐纪胜, 曾凡仔, 李康, 等. 基于WIPT的两路中继协作underlay认知无线电的性能分析[J]. 通信学报, 2019,40(2):129-136.
Jisheng XU, Fanzi ZENG, Kang LI, et al. Performance analysis of two-way relay cooperation underlay cognitive radio networks based on WIPT[J]. Journal on communications, 2019, 40(2): 129-136.
徐纪胜, 曾凡仔, 李康, 等. 基于WIPT的两路中继协作underlay认知无线电的性能分析[J]. 通信学报, 2019,40(2):129-136. DOI： 10.11959/j.issn.1000-436x.2019041.
Jisheng XU, Fanzi ZENG, Kang LI, et al. Performance analysis of two-way relay cooperation underlay cognitive radio networks based on WIPT[J]. Journal on communications, 2019, 40(2): 129-136. DOI： 10.11959/j.issn.1000-436x.2019041.
摘要
首先提出基于WIPT的两路中继协作underlay认知无线电网络，其中次用户系统采用两路协作中继传输，中继采取功率分裂协议进行能量采集和信息解码，利用所采集的能量转发信息。然后通过数学推导得出系统用户的中断概率精确表达式和次用户系统遍历容量以及能量效应。最后数值仿真探讨了次用户发射功率对系统性能的影响，结果表明两路中继协作有效地降低了数据传输的中断概率，且当功率分配系数取0.5时，系统的容量和能量效应达到最优。
Abstract
The two-way relay cooperation for underlay cognitive radio networks based on WIPT was presented
where secondary system adopted the two-way relay cooperative transmission.First
the relay adopted a power splitting protocol to harvest energy and to decode information transmitted by secondary users
then the relay forwarded information to two secondary users by using the harvested energy.Subsequently the exact expression of the outage probability
the ergodic capacity and energy efficiency of the secondary user system were derived.Finally
numerical simulation discusses the impact on the system performance with regard to secondary transmission power.The results reveal that the two-way relay cooperation effectively reduces the outage probability of data transmission.The capacity and energy efficiency of the system reaches optimal level when the power allocation coefficient is 0.5.
关键词
Keywords
references
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