Sum-Throughput Maximization for MIMO Full-Duplex Wireless Powered Communication Network with Finite Alphabet Inputs

被引:0
|
作者
Peng, Yingru [1 ]
Ke, Feng [1 ]
机构
[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Guangdong, Peoples R China
关键词
Energy harvesting; full-duplex wireless powered communication network (FD-WPCN); finite alphabet inputs;
D O I
暂无
中图分类号
U [交通运输];
学科分类号
08 ; 0823 ;
摘要
In this paper, we maximize the sum-throughput of a multi-user MIMO full-duplex wireless powered communication network (FD-WPCN) by jointly optimizing the precoding matrices and time allocation vector. In particular, we consider a more practical scenario with energy causality and finite alphabet inputs. The original optimization problem is non-convex and intractable. We prove that the time allocation problem is convex with the precoding matrices fixed. We also simplify the optimal precoder design to a convex power allocation problem for a given time allocation vector. By optimizing the precoding matrices and the time allocation vector alternately, we propose a two-step iterative algorithm to find the optimal solution. The simulation results show that our scheme outperforms other benchmark schemes significantly.
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页数:5
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