The Survey on Energy Aware Routing

An ad-hoc network is a collection of wireless mobile hosts forming a temporary network without the aid of any stand-alone infrastructure or centralized administration. The Ad-hoc Networks do not have gateway, ie.every node can act as the gateway. For efficient routing in adhoc network many routing protocols have been implemented where Routing is the process of selecting paths in a network along which to send network traffic. In these days as the energy issue becomes more important, it is required to research about the efficient resource allocation methods optimized in wireless networks. The objective of energy aware routing algorithms is to minimize the total power for routing a message from source to destination or to maximize the total number of routing tasks that a node can perform before its battery power depletes. Energy conservation is a critical issue as the lifetime of these nodes depends on the life of the system. Research has been carried out to conserve energy at various levels ie., hardware level, operating system, application level.