SARP: Self Acknowledge Routing protocol for Route maintenance in Mobile Ad Hoc Network

Mobile Ad hoc Networks (MANET) are characterized by multi hop wireless connectivity, infrastructure less environment and frequently changing topology. Wireless links in MANET are highly error prone and can go down frequently due to mobility of nodes. Most reactive routing protocols do not maintain routing information at the node, on link failure typically a route error message is sent to the source and source initiates another route discovery which creates a lot of routing overhead. We present a Self Acknowledge Routing Protocol (SARP) for route maintenance in mobility, where each intermediate node runs a Self Acknowledge (SA) algorithm to recover the broken link to reach the destination efficiently. Main intends of the protocol is to minimize new route discovery process through route repair and minimize the network overhead. The protocol is implemented over Dynamic Source Routing Protocol (DSR) and the experiment results shows reduction in control overhead and end-to-end delay with an improvement of the packet delivery ratio.