Secrecy outage performance for wireless-powered relaying systems with nonlinear energy harvesters

We consider a cooperative system consisting of a source node, a destination node, N (N >1) wireless-powered relays, and an eavesdropper. Each relay is assumed to be with a nonlinear energy harvester, in which there exists a saturation threshold, limiting the level of the harvested power. For decode-and-forward and power splitting protocols, the Kth best relay is selected to assist the source-relay-destination transmission. An analytical expression for the secrecy outage probability is derived, and also verified by simulation.

[1]  Yunfei Chen,et al.  Energy-Harvesting AF Relaying in the Presence of Interference and Nakagami-$m$ Fading , 2016, IEEE Transactions on Wireless Communications.

[2]  Derrick Wing Kwan Ng,et al.  Simultaneous wireless information and power transfer in modern communication systems , 2014, IEEE Communications Magazine.

[3]  Derrick Wing Kwan Ng,et al.  Practical Non-Linear Energy Harvesting Model and Resource Allocation for SWIPT Systems , 2015, IEEE Communications Letters.

[4]  Victor C. M. Leung,et al.  Improving physical-layer security in wireless communications using diversity techniques , 2014, IEEE Network.

[5]  John G. Proakis,et al.  Digital Communications , 1983 .

[6]  Yunfei Chen,et al.  Secrecy Performance Analysis for SIMO Simultaneous Wireless Information and Power Transfer Systems , 2015, IEEE Transactions on Communications.

[7]  Meixia Tao,et al.  Relay Placement for Physical Layer Security: A Secure Connection Perspective , 2012, IEEE Communications Letters.

[8]  Julian Cheng,et al.  Performance of Wireless Powered Amplify and Forward Relaying Over Nakagami-$m$ Fading Channels With Nonlinear Energy Harvester , 2016, IEEE Communications Letters.

[9]  Wei-Ping Zhu,et al.  Relay-Selection Improves the Security-Reliability Trade-Off in Cognitive Radio Systems , 2014, IEEE Transactions on Communications.

[10]  Xianbin Wang,et al.  Optimal Relay Selection for Physical-Layer Security in Cooperative Wireless Networks , 2013, IEEE Journal on Selected Areas in Communications.

[11]  Caijun Zhong,et al.  Application of smart antenna technologies in simultaneous wireless information and power transfer , 2014, IEEE Communications Magazine.

[12]  Derrick Wing Kwan Ng,et al.  Robust Beamforming for Secure Communication in Systems With Wireless Information and Power Transfer , 2013, IEEE Transactions on Wireless Communications.

[13]  H. Vincent Poor,et al.  Power Allocation Strategies in Energy Harvesting Wireless Cooperative Networks , 2013, IEEE Transactions on Wireless Communications.

[14]  Sonia Aïssa,et al.  RF-Based Energy Harvesting in Decode-and-Forward Relaying Systems: Ergodic and Outage Capacities , 2015, IEEE Transactions on Wireless Communications.

[15]  Hui-Ming Wang,et al.  On physical-layer security in underlay cognitive radio networks with full-duplex wireless-powered secondary system , 2016, IEEE Access.

[16]  Huiming Wang,et al.  Enhancing wireless secrecy via cooperation: signal design and optimization , 2015, IEEE Communications Magazine.

[17]  Bayan S. Sharif,et al.  Wireless Information and Power Transfer in Cooperative Networks With Spatially Random Relays , 2014, IEEE Transactions on Wireless Communications.

[18]  I. S. Gradshteyn,et al.  Table of Integrals, Series, and Products , 1976 .

[19]  Yunfei Chen,et al.  Secrecy outage performance for partial relay selection schemes in cooperative systems , 2015, IET Commun..