SimultaneousWireless Power Transfer and Secure Multicasting in Cooperative Decode-and-Forward Relay Networks

被引：3

作者：

Lee, Jong-Ho ^{[1
]}

Sohn, Illsoo ^{[2
]}

Kim, Yong-Hwa ^{[3
]}

机构：

[1] Gachon Univ, Dept Elect Engn, Seongnam 13120, Gyeonggi, South Korea

[2] Seoul Natl Univ Sci & Technol, Dept Comp Sci & Engn, Seoul 01811, South Korea

[3] Myongji Univ, Dept Elect Engn, Yongin 17058, Gyeonggi, South Korea

来源：

SENSORS | 2017年 / 17卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

physical layer security; secure multicasting; wireless power transfer; relay networks; SIMULTANEOUS WIRELESS INFORMATION; OPTIMIZATION; CHANNELS;

D O I：

10.3390/s17051128

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, we investigate simultaneous wireless power transfer and secure multicasting via cooperative decode-and-forward (DF) relays in the presence of multiple energy receivers and eavesdroppers. Two scenarios are considered under a total power budget: maximizing the minimum harvested energy among the energy receivers under a multicast secrecy rate constraint; and maximizing the multicast secrecy rate under a minimum harvested energy constraint. For both scenarios, we solve the transmit power allocation and relay beamformer design problems by using semidefinite relaxation and bisection technique. We present numerical results to analyze the energy harvesting and secure multicasting performances in cooperative DF relay networks.

引用

页数：12

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