ABSTRACT
This chapter provides important features and limitations of selfishness prevention schemes. A mobile ad hoc network (MANET) is basically a peer-to-peer, multihop mobile wireless network. MANETs have been developed for dangerous environments such as rescue and the battlefield so that emergency personnel or soldiers may be aware of the location of hazardous material or tactical situations. Mobile stations (MSs) have two function modules on dynamic source routing: watchdog and pathrater. MSs have many resource constraints: low battery energy, small memory capacity, and slow processing capability. P. W. Yau and C. J. Mitchell came up with several problems that make cooperation of nodes: Fairness in Dynamic Ad-Hoc Networks (CONFIDANT) and Collaborative Reputation Mechanism (CORE) impractical in actual MANETs. Secure and objective reputation-based incentive scheme (SORI) provides a security mechanism using the one-way hash chain. The goal of SORI is to develop quantitative and objective ways to measure reputation.
