A Secure Routing Scheme Based on Probability Prediction for Wireless Sensor Networks

In wireless sensor networks (WSNs), the sensor can be easily compromised by attacker. The traditional intrusion detection can’t detect the compromised nodes immediately. The undetected compromised sensors can utilize advanced resources to attract data stream, compromise and drop the data packets. In this paper, we propose a secure routing protocol (Secure Relay Grid Routing Protocol) based on probability prediction. In the protocol, the network is divided into different small grids. By utilizing the geographic information and intrusion detection information, the proposed protocol is designed with a routing metric which is based on a mathematics prediction model. The routing metric could guarantee the message detour those compromised grids that have not been detected by the intrusion detection. The theoretical analysis and OPNET simulation results show that the proposed protocol can provide high delivery ratio and decrease the number of the compromised packets.