International Journal of Advanced Research in Computer Engineering & Technology
Wireless Sensor Networks contain large number of sensor nodes they are deployed in hostile environment so there is no security. An adversary may capture and compromise the sensor node and make replicas of them. The replica nodes are also called duplicate nodes. These replica node attacks are dangerous which leads to eaves dropping in network communication. Replica node detection scheme work well in fixed sensor network and do not work well in Mobile Sensor Network. To detect these replica node attacks, Sequential Probability Ratio Testing (SPRT) that is speed measurement testing method is used. The proposed system shows the problem of sensor node failure. If a sensor node fails because of energy depletion the authors need to choose alternative sensor for that particular region.