International Journal of Computer & Organization Trends(IJCOT)
In Wireless Sensor Network (WSN) communication, every node transmits data packets to further nodes and spends its resources like battery power, CPU time and memory. In ideal situation all the nodes forward packets to other nodes according to their requirements .Presence of selfish nodes is a very big issue in WSNs. A selfish node doesn't forward packets and utilize to its own profit but it is hesitating using personal resources for others. If such activities occur within most of the nodes in the network, the network is disrupted.