Detection and Isolation of Reluctant Nodes Using Reputation Based Scheme in An Ad-Hoc Network
Rekha Kaushik, Jyoti Singhai · International journal of Computer Networks & Communications · 2011
In an ad hoc network, the transmission range of nodes is limited; hence nodes mutually cooperate with its neighbouring nodes in order to extend the overall communication.However, along with the cooperative nodes, there may be some reluctant nodes like selfish nodes and malicious nodes present in the network.Such nodes degrade the performance of the network.This paper, gives a survey of reputation based mechanism and credit based mechanism.These include different strategies by which non cooperative nodes are detected, isolated and/or prevented, their advantages and limitations.Also, a global reputation based scheme is proposed in this paper for the detection and isolation of selfish node.A cluster head is used which is responsible for reputation management of each node in the network.Detection of selfish nodes is accomplished which are created due to nodes conserving their energy using NS2.After their detection, performance analysis of network with selfish node and the network after isolation of selfish node is carried out.