Research and Improve on Secure Routing Protocols in Wireless Sensor Networks

Most routing protocols in wireless sensor networks take networks lifetime as design target, but not security. This paper researches on routing security and proposes SS-LEACH algorithm based on LEACH algorithm. The SS-LEACH algorithm makes use of nodes self-localization technology and keys pre-distribution strategy. It improves the method electing cluster-heads and forms dynamic stochastic multi-paths cluster-heads chains. The results of simulation demonstrate that the SS-LEACH algorithm not only prolongs the lifetime of wireless sensor networks effectively, but also enhances routing security strongly.