A New Cooperative Jamming Technique for a Two-Hop Amplify-and-Forward Relay Network With an Eavesdropper

In this correspondence paper, we propose a new cooperative jamming technique for an amplify-and-forward relay network with multiple relays. Also, we propose a joint power allocation and relay selection scheme for the network with the proposed technique. The secrecy outage probability of the network is derived and a joint power allocation and relay selection problem is proposed to minimize the secrecy outage probability. By using the primal decomposition method, we divide this problem into a master problem and a subproblem each of which solution is obtained. Simulation results show that the proposed scheme for the network with the proposed technique provides lower secrecy outage probability than a conventional scheme for the network with a conventional technique.