In this paper, we consider a cooperative wireless network consisting of a source, multiple intermediate energy harvesting nodes and a destination, in the presence of a passive eavesdropper. First, the intermediate nodes use the time switching-based relaying protocol to harvest energy from the source signal. Then, a pair out of intermediate nodes are selected as a relay and a jammer to transmit confidential and jamming signals to the destination and eavesdropper. Under these assumptions, we evaluate the system performance in terms of secrecy outage probability.
Hoang, T. M., Duong, Q., Vo, N-S., & Kundu, C. (2017). Physical Layer Security in Cooperative Energy Harvesting Networks with a Friendly Jammer. IEEE Wireless Communications Letters. https://doi.org/10.1109/LWC.2017.2650224