SWIPT MIMO全双工系统中的物理层安全通信优化方法

doi:10.19678/j.issn.1000-3428.0052608

计算机工程 ›› 2019, Vol. 45 ›› Issue (12): 109-113. doi: 10.19678/j.issn.1000-3428.0052608

SWIPT MIMO全双工系统中的物理层安全通信优化方法

陈可可, 赵赛, 唐冬

广州大学机械与电气工程学院, 广州 510006

收稿日期:2018-09-10 修回日期:2018-12-26 发布日期:2019-01-04
作者简介:陈可可(1997-),男,硕士研究生,主研方向为无线通信、中继传输技术;赵赛,讲师、博士;唐冬(通信作者),教授、博士。
基金资助:
广东省自然科学基金（2017A030310639，2017A030313363）；广东省科技计划项目（2016A010101032）；广东省教育厅特色创新类项目（2016KTSCX104）；广州市教育局科技项目（1201630400）。

Optimization Method for Physical Layer Secure Communication in SWIPT MIMO Full-Duplex System

CHEN Keke, ZHAO Sai, TANG Dong

School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China

Received:2018-09-10 Revised:2018-12-26 Published:2019-01-04

摘要/Abstract

摘要： 研究多输入多输出通信系统中同时存在无线信息与能量时的安全传输问题。在源端和全双工节点发送端的发送总功率、全双工节点接收端的能量收集限制2种约束条件下，设计人工噪声与全双工节点接收端的能量分配因子，给出保密速率最大化问题的函数表达式，并分别提出基于替代函数和泰勒公式展开的2种优化方法。仿真结果表明，所提2种方法能有效解决全双工模式中的保密速率最大化问题，且与半双工模式相比，全双工模式可以提高系统的保密速率与安全性。

关键词: 多输入多输出系统, 全双工模式, 人工噪声, 保密速率, 能量收集

Abstract: This paper studies the security problem in the Multiple-Input Multiple-Output(MIMO) communication system when the transmission of wireless information and power happens simultaneously.We first design the energy partitioning factors of the artificial noise and the full-duplex node receiver respectively.The design is achieved under two constraints:the total power constraint of the source and the full-duplex transmitter,and the energy collection constraint of the full-duplex receiver.Then we give the functional expression of the maximum secrecy rate problem and two optimization methods,which are based on the substitution function and Taylor formula respectively.Simulation results show that these two methods can effectively solve the maximum secrecy rate problem in full-duplex mode.Besides,compared with the half-duplex mode,the full-duplex mode can improve the secrecy rate and security of the system.

Key words: Multiple-Input Multiple-Output(MIMO) system, full-duplex mode, artificial noise, secrecy rate, energycollection

中图分类号:

TP391

陈可可, 赵赛, 唐冬. SWIPT MIMO全双工系统中的物理层安全通信优化方法[J]. 计算机工程, 2019, 45(12): 109-113.

CHEN Keke, ZHAO Sai, TANG Dong. Optimization Method for Physical Layer Secure Communication in SWIPT MIMO Full-Duplex System[J]. Computer Engineering, 2019, 45(12): 109-113.

http://www.ecice06.com/CN/Y2019/V45/I12/109

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