Secure Wireless Transmission in Cooperative Wireless Networks Using Relay Redundancy
Kaizhi Huang · Journal of Information Engineering University · 2010
Spatial location is the most important feature for distinguishing different users in wireless systems.A new method using redundant relays for secure transmission in cooperative wireless network is proposed in this paper.This method randomly selects the redundant relaying signals in radio channel for encryption when the spatial location of relay nodes is fixed.The transmitted signals are also concentrated on the target receiver by adjusting the signal phases of the relay nodes.Simulation results show that the proposed method secures wireless transmission for the authorized receiver and reduces the probability of interception.