A SURVEY ON REPUTATION BASED SELFISH NODE DETECTION TECHNIQUES IN MOBILE AD HOC NETWORK
Sudha S. Senthilkumar, J. William · 2014
Mobile Ad hoc Network (MANET) is well known for its limited transmission range of wireless network interface. Hence, multiple hops (multi-hops) may be needed for exchanging the information from one node to another across the network without any base stat ions or routers. In MANETs, as there is no hierarch y among nodes, every node is responsible for forwardi ng packets to its neighbouring nodes. Due to severe resource constraints like memory, computing power, energy, bandwidth and time, some nodes may not participate in forwarding the packets for saving it s resources. The presence of selfish behaviour amon g nodes may lead to network partitioning and makes a major negative impact in throughput and the network operation. To avoid such circumstances selfish node deduction is very important. Already many selfish node detection mechanisms have been developed and still exist. And this survey is to evaluate some of the reputation based selfish node detection mechanisms and to analyze its merits and demerits. This paper compares different methods based on QoS metrics as well as on node’s behavioral analysis for reducing the effect of selfish nodes in mobile ad hoc networks.