Redirect Link Failure Protocol Based on Dynamic Source Routing for MANET

Abstract

Ad hoc networks are characterized by multi-hop wireless connectivity. Due to frequent topology changes in wireless ad hoc networks, designing an efficient and dynamic routing protocol is a very challenging task,and it has been an active area of research. This work is part of ongoing research on the link failure problem caused by the node’s mobility in Dynamic Source Routing (DSR) protocol. In this paper, we propose an extension of DSR protocol called Redirect Link Failure Protocol (DSR-RLFP) in order to solve link failure and avoid propagation route error message back to the source upon link failure in a different way from the existing solution. RLFP protocol contains two models namely, Link Failure Prediction Model and Link Failure Solution Model. The main benefit of RLFP is to reduce the frequent route discovery process after link failure happened, which leads to save network resources.