Detection of False Alarm in Handling of Selfish Nodes in Mobile Ad Hoc Networks

An mobile Ad Hoc network is a collection of mobile nodes. They does not have any existing infrastructure and they does not have any centralized administrator. So the MANET is self-creating, selforganizing and self-administrative wireless network. In MANET each node act as router. In practice some of the nodes may act as the selfish nodes. These nodes use the network and its services but they do not cooperate with other nodes. Such selfish nodes do not consume any energy such as CPU power, battery and bandwidth for retransmitting the data of other nodes. They will preserve the resources for their own use. Several data replication techniques have been proposed to minimize performance degradation. Most of them assume that all mobile nodes collaborate fully in terms of sharing their memory space. In reality, however, some nodes may selfishly decide only to cooperate partially, or not at all, with other nodes. These selfish nodes could then reduce the overall data accessibility in the network.