Cluster-based routing method wsn can survive and survival assessment model

The present invention discloses a cluster-based wireless sensor network (WSN) can survive routing method and survival assessment model, set key agreement, identity authentication between the backup chain cluster head, and the semi-Markov chain cluster routing Mechanism in one; SRPC strong anti-attack capability. Resist through key agreement and authentication mechanism malicious nodes, ensure the availability and integrity monitoring information; low power consumption, long life. Energy factor is introduced, and the binding between the single-hop route and the multi-hop routing cluster to transmit the monitoring data, can significantly improve the anti-attack ability of the network and make the network by equalizing the best viability; high delivery rate. SRPC protocol cluster head node fails or when destroyed, the highest priority data to the spare cluster heads. Survivability assessment model has versatility. This model is suitable for quantitative assessment of the state of network WSN stay obey the negative exponential distribution, can also be used to assess the state of the vagaries of network survivability, WSN stay no state law.