CMDR: Conditional minimum drain rate protocol for route selection in mobile ad-hoc networks

Abstract

Untethered nodes in mobile ad-hoc networks strongly depend on the efficient use of their batteries. In the previous work [12], we proposed a new metric, the drain rate, to be used to forecast the lifetime of nodes according to current traffic conditions and introduced a mechanism, called the Minimum Drain Rate (MDR) that can be used in any of the existing MANETs routing protocols as a route establishment criterion to achieve a dual goal: to extend both nodal battery life and connection duration. In this paper, we present a modified version, called Conditional MDR (CMDR), which also minimizes the total transmission power consumed per packet besides the above dual goal. Using the ns-2 simulator and the dynamic source routing (DSR) protocol, we compared CMDR against Conditional Max-Min Battery Capacity Routing (CMMBCR) in the literature. © Springer-Verlag Berlin Heidelberg 2003.