Energy Efficient Routing in Clustered Mobile Ad Hoc Network (MANET)

Abstract

Mobile ad-hoc network (MANET) comprises of indistinguishable nodes that moves freely and communicate wirelessly. Mobile ad hoc network (MANET) is system without any kind of fixed base where the correspondence abilities of the system are constrained because of battery power of the nodes. Since all nodes can move arbitrarily and there is no fixed base , it causes different sorts of issues, for example, energy efficient routing.Conventional protocols like proactive (DSDV etc.) and reactive (AODV etc.) routing protocols are not suited for such type of networks it is essential to introduce another protocol to work in MANET. MANETs are becoming popular now because of simple deployment and it’s cheapness. Clustering is a proven efficient solution to save the battery power of certain nodes in a network. Nodes in a network are progressively sorted out into subgroups called clusters. In the process of clustering, there exists a cluster head (CH) in every cluster which works similar to a base station in the cellular architecture. Lowest id and highest connectivity algorithms are proposed for forming cluster and for cluster head selection in network and ESAR is proposed as energy efficient routing in flat structure for routing. ESAR consider minimum available battery power of a node in the ith path, and actual distance between the source and the destination in the ith path, Distance(i)and on the basis of these values routing path is selected . This proposed algorithem selects path the best path for packet transmission till any node in the path exhausts battery power beyond a threshold value. The process is repeated till all the paths from the same source to destination are exhausted with their battery power.If there are n nodes in network and m (m<n) are selected as cluster head & energy associated with each node is E(i) then those m cluster heads will send data to base station and other cluster member will send data to cluster heads In clustered MANET factors DE(i) is decresed as CH sends data and network is in distibuted manner. Here it will choose path in network based on Energy efficiency and distance factor between cluster heads.