Secure D2D Communication in Large-Scale Cognitive Cellular Networks: A Wireless Power Transfer Model

—In this paper, we investigate secure device-to-device (D2D) communication in energy harvesting large-scale cognitive cellular networks. The energy constrained D2D transmitter harvests energy from multi-antenna equipped power beacons (PBs), and communicates with the corresponding receiver using the spectrum of the primary base stations (BSs). We introduce a power transfer model and an information signal model to enable wireless energy harvesting and secure information transmission. In the power transfer model, three wireless power transfer (WPT) policies are proposed: 1) cooperative power beacons (CPB) power transfer, 2) best power beacon (BPB) power transfer, and 3) nearest power beacon (NPB) power transfer. To characterize the power transfer reliability of the proposed three policies, we derive new expressions for the exact power outage probability. Moreover, the analysis of the power outage probability is extended to the case when PBs are equipped with large antenna arrays. In the...

• Type: Journal
• Year: 2016
• Where: TCOM
• Authors: Yuanwei Liu, Lifeng Wang, Syed Ali Raza Zaidi, Maged Elkashlan, Trung Q. Duong
• Keywords: Software Engineering, TCOM 2016