Different Ways to Achieve Trust in MANET

MANET (Mobile Ad-hoc Network) is hot spot for research due to its various advantages and disadvantages. Providing safe communication between mobile nodes, recognization the position of nodes, reducing overhead, handling misbehavior and location updates are such a difficult issues in ad-hoc network, so providing trust schemes is an important in this network. MANET provides some basic functions like routing, communication, network management and packet forwarding etc over self organized network. Because MANET has not a fixed topology, in which mobile nodes comes and leaves the network within a random period of time. It effects energy, bandwidth and memory computations of network. Providing trust in MANET is such a crucial task because it doesn’t having centralized infrastructure. In this paper, we survey the different trust model schemes of MANET with their unique features, merits and demerits & findings.