Link Expiration-Based Routing in Wireless Ad Hoc Networks

Wireless ad hoc networks are dynamic and infrastructureless networks. The dynamicity of the network and ignorance of the link availability are the basic reason for inefficient routing and hence causes unsuccessful data transmission between the peers. The prediction of link expiration can overcome the problem of link failure during routing. In this paper, we modified the routing mechanism by considering the network dynamicity in terms of Link Expiration Time (LET). The proposed routing technique is reactive in nature and performs route discovery based on LET with minimized control overhead. The simulation results show that the proposed scheme outperforms the existing Dynamic Source Routing (DSR) in terms of control overhead, hop count, etc., and provides better link duration time than the existing protocol.