Optimal power allocation to increase secure energy efficiency in a two-way relay network

Rugui Yao, Tamer Mekkawy, Fei Xu

科研成果: 书/报告/会议事项章节会议稿件同行评审

4 引用 (Scopus)

摘要

In this paper, a cooperative secure transmission in a two-way relay network is investigated. Due to untrusted relay, physical layer security is adopted to secure the user's messages from relay interruption. Considering the secure sum rate and power consumption for the network, we formulate an optimal power allocation (OPA) problem for the transmission to maximize the secure energy efficiency (EE). To lower the complexity of the optimization solution, an approximation based on Taylor expansion is introduced to achieve near optimal secure EE with acceptable errors. Finally, the numerical results are presented to validate the correctness and efficiency of the proposed algorithm and solution. The relative error of secure EE is not greater than 6% in the worst case, and about 1% in most cases, which is acceptable.

源语言英语
主期刊名2017 IEEE 86th Vehicular Technology Conference, VTC Fall 2017 - Proceedings
出版商Institute of Electrical and Electronics Engineers Inc.
1-5
页数5
ISBN(电子版)9781509059355
DOI
出版状态已出版 - 2 7月 2017
活动86th IEEE Vehicular Technology Conference, VTC Fall 2017 - Toronto, 加拿大
期限: 24 9月 201727 9月 2017

出版系列

姓名IEEE Vehicular Technology Conference
2017-September
ISSN(印刷版)1550-2252

会议

会议86th IEEE Vehicular Technology Conference, VTC Fall 2017
国家/地区加拿大
Toronto
时期24/09/1727/09/17

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