Joint Secure Routing and Power Optimization Algorithm for Wireless Ad Hoc Networks

A joint security routing and power optimization algorithm for wireless multi-hop Ad hoc network is proposed in an eavesdropping environment. Firstly, the Secrecy Outage Probability (SOP) and expressions of Connection Outage Probability (COP) are derived under the assumption that the distribution of the eavesdroppers follows the Poisson Cluster Process (PCP). Then, in view of minimizing COP with the constraint of SOP, the optimal transmission power of each hop is derived for any given path. Based on that, the optimal route from the source to the destination is obtained. The simulations on COP and SOP show that the derived theoretical results agree well with the Monte-Carlo simulations. It is also shown that the security performance of the proposed algorithm is close to that of exhaustive searching, and also outperforms the traditional method.