Reena Rani, Reena Thakral
A Mobile Ad Hoc Network (MANET) is a wireless network in which mobile nodes are connected in wireless medium without any base station or centralized control. MANETs used in business environment, commercial application, military application, disaster recovery. Routing in MANET is the serious challenge because network topology is dynamic that means node can change their position again and again. Routing protocol is used to determine the route from source to destination with minimum battery and minimum cost and minimum distance. In this paper define the different routing protocol and the comparisons between the routing protocols and also discuss the How Link failure occurred between the nodes and how it is detected.