Joint Beamforming and Time Duration Optimization for Battery-Free-Multi-Antenna-Relay-Assisted WPCN

Fan Yang, Wenjun Xu*, Chia-Han Lee, Zhiyong Feng, Jiaru Lin

*此作品的通信作者

研究成果: Conference contribution同行評審

3 引文 斯高帕斯(Scopus)

摘要

This paper studies an energy beamforming and time duration joint optimization problem for maximizing the sum-rate of a battery-free-multi-antenna-relay-assisted wireless powered communication network (WPCN). The considered problem is non-convex due to the strongly coupled optimization variables. By introducing new optimization variables and reformulating the problem into a convex problem, the optimal solution is obtained based on convex optimization methods. Furthermore, an alternate iteration algorithm is proposed by decoupling the problem into two subproblems, and a semi-closed form solution of the optimal energy beamforming matrix is derived with given time allocation. Simulation results indicate that the proposed battery-free multi- antenna relay architecture can deliver a significant sum-rate gain for the WPCN. In addition, the proposed suboptimal algorithm only has 5% sum-rate loss compared to the optimal solution.

原文English
主出版物標題2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781538647271
DOIs
出版狀態Published - 1 1月 2018
事件2018 IEEE Global Communications Conference, GLOBECOM 2018 - Abu Dhabi, United Arab Emirates
持續時間: 9 12月 201813 12月 2018

出版系列

名字2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings

Conference

Conference2018 IEEE Global Communications Conference, GLOBECOM 2018
國家/地區United Arab Emirates
城市Abu Dhabi
期間9/12/1813/12/18

指紋

深入研究「Joint Beamforming and Time Duration Optimization for Battery-Free-Multi-Antenna-Relay-Assisted WPCN」主題。共同形成了獨特的指紋。

引用此