Various schemes to detect selfishness in wireless ad-hoc networks: A survey

An ad hoc network is a suburbanized types of wireless network. The ad hoc which means “for this purpose” formed network instantly when nodes are connected in network for communication. Ad hoc network is a temporary network built for specific purpose. It does not require any pre-established infrastructure. The dynamic nature of ad hoc networks makes them more utilisable. On the other hand, selfish nodes in the network may degrade the network performance in an attempt to save their resources. The side effects of such selfish nodes are lower data accessibility, break-down in communication, and increase in communication cost for legitimate nodes and so on. In past years, various solutions for extenuating selfishness are proposed by many researchers. In this paper, we survey notable work done by various researchers to detect selfish nodes in the network. Moreover, we also mention future scope of these existing schemes which may be beneficial to researchers for further research in this direction.