通信学报2018，Vol.39Issue(2)：43-52,10.DOI:10.11959/j.issn.1000-436x.2018023
能量受限全双工双向中继系统的波束成形设计
Beamforming design for energy-constrained full-duplex two-way relaying system
摘要
Abstract
A beamforming design was proposed under simultaneous wireless information and power transfer (SWIPT) pro-tocol. A utility optimization problem was considered aiming to maximize the harvested energy by jointly optimizing the beamforming matrix, the power splitting ratio at the relay and the transmit powers at the sources. Since the formulated joint optimization problem was nonconvex, it was difficult or even intractable to obtain the global optimal solution. To overcome this issue, the objective problem into three subproblems was decoupled which could be solved by the proposed semidefinite relaxation technique and the derived constraints activation solution, respectively. The solution was finally obtained with the proposed convergent iterative algorithm. Simulation results show that the proposed joint optimization scheme achieves the optimal performance. Compared with the traditional half-duplex (HD) algorithm, the proposed algorithm can obtain 2~3 times energy harvesting (EH) efficiency improvement, while the computational complexity increases slightly.关键词
能量收集/无线信息与能量同时传输/波束成形/全双工/双向中继Key words
energy harvesting/simultaneous wireless information and power transfer/beamforming/full-duplex/two-way relaying分类
信息技术与安全科学引用本文复制引用
王伟,安立源,章国安,张士兵..能量受限全双工双向中继系统的波束成形设计[J].通信学报,2018,39(2):43-52,10.基金项目
国家自然科学基金资助项目(No.61771263, No.61371111, No.61371112, No.61371113) （No.61771263, No.61371111, No.61371112, No.61371113）
江苏高校品牌专业建设工程基金资助项目(No.PPZY2015B135) （No.PPZY2015B135）
南通市科技计划基金资助项目(No.GY22017013) （No.GY22017013）
南通大学—南通智能信息技术联合研究中心开放课题基金资助项目(No.KFKT2017B02, No.KFKT2016B02)Foundation Items: The National Natural Science Foundation of China (No.61771263, No.61371111, No.61371112, No.61371113), The Top-Notch Academic Programs Project of Jiangsu Higher Education Institutions (No.PPZY2015B135), The Science and Tech-nology Program of Nantong (No.GY22017013), The Open Research Fund of Nantong University-Nantong Joint Research Center for Intelligent Information Technology (No.KFKT2017B02, No.KFKT2016B02) （No.KFKT2017B02, No.KFKT2016B02）
