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

Sensors

Illsoo Sohn¹  Jong-Ho Lee²  Yong-Hwa Kim³ 

[1] Department of Computer Science and Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea;Department of Electronic Engineering, Gachon University, Seongnam, Gyeonggi 13120, Korea;Department of Electronic Engineering, Myongji University, Yongin, Gyeonggi 17058, Korea;

关键词: physical layer security;    secure multicasting;    wireless power transfer;    relay networks;   

DOI  :  10.3390/s17051128

来源: DOAJ

【 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.

【 授权许可】

Unknown