Detection of selfish Nodes in MANET - a survey

Abstract

This paper is to identify the selfish Nodes and also improved the overall network performance in Mobile Adhoc network (MANET). In MANET, using the wireless connection, mobile devices are connected and the nodes freely move where it wants to communicate with each other. All nodes are participated in packet forwarding in order to cooperate with each node. Suppose, if the nodes are not forwarding the packets to its neighbor nodes it is called as selfish nodes. Many techniques are available for identifying selfish nodes. Many methodologies are comparing to improve the detection of selfish nodes and improve the network performance and precision speed and network throughput and reduce the detection time of selfish node. Finally, propose a collaborative contact based watchdog approach, which is based to detect the selfish nodes.