Effective Replica Allocation to Minimize Performance Degradation in MANET

In MANET, most of them assume that all mobile nodes cooperate fully in terms of sharing their resources. But, some nodes may act as selfish. It may selfishly decide only to cooperate partially, or not fully cooperate with other nodes. These selfish nodes also known as misbehaving nodes. It could then decrease the overall data accessibility in the network. We examine selfish replica allocation such that impact of selfish nodes in a mobile ad hoc network from the perspective of replica allocation. We develop a selfish node detection algorithm that considers partial selfishness and replica allocation techniques to properly cope with selfish replica allocation. The simulations demonstrate the proposed approach outperforms traditional cooperative replica allocation techniques in terms of data accessibility, communication cost, and average query delay.