A Signal RSD Based Routing Protocol for Mobile Ad-Hoc Networks

Abstract

Due to the dynamic topology feature of mobile ad hoc networks (MANETs), the use of a stable route is a possible way to provide more reliable data communication in the environment. By selecting stable links to prevent link failures, several stability based routing protocols have been proposed recently. In the paper, we present a quantitative approach for the estimation of link stability by using the relative standard deviation (RSD) of received signals strengths. A signal RSD based routing protocol, RSDBR, is thus proposed based on the link stability estimations. To achieve better performance in route discovery, we also present two possible improvements to avoid packet flooding in route discovery. Our simulation results show that the stable routes found by our algorithm have lifetime about 30% longer than shortest routes.