International Journal of Advanced Research in Computer Engineering & Technology
In a Multihop Wireless Network (MWN), the packets from a source node are relayed through a large number of intermediate nodes before they are delivered to the destination. But such relaying of other's packets will consume valuable resources of these intermediate nodes such as their energy and computing power. Hence some nodes, usually referred to as selfish nodes may not cooperate in relaying other's packets and at the same time they make use of other cooperative nodes to relay their own packets. In such a situation, the authors may use some incentive mechanisms based on micropayment to stimulate these selfish nodes to cooperate. There exist a lot of such mechanisms. In this paper, they make a survey on a few of them.