PER: a power-life extension routing protocol using a round robin scheme for mobile ad hoc networks

A mobile ad hoc network (MANET) consists of mobile hosts which can peer-to-peer communicate with other mobile hosts through the multi-hopping routing. Each mobile device which operates the mobile computing and wireless communication operations is mainly depended on the battery. The power consumption of the battery is very important for supporting the wireless mobile applications. This problem is intensively investigated in wireless mobile ad hoc networks. In this paper, we propose a PER: power-life extension routing protocol using a round robin scheme for wireless mobile ad hoc networks. Existing power-awareness routing protocols in MANETs mainly search for a power-awareness route with the consideration of the minimum total transmission power (MTPR protocol), or the minimum battery cost (MBCR protocol), the min-max battery cost (MMBCR protocol), and the minimum drain rate (MDR protocol). The key idea of our scheme is a simple multi-path routing between each possible pair of two three-hop neighboring nodes. This scheme identifies many disjoint sub-paths between one pair of three-hop neighboring nodes. A round robin scheme is applied on the multiple disjoint sub-paths such that the power consumption can be evenly distributed into all subpaths, such that each sub-path is responsible for the less amount of power consumption. This scheme can promote and extend the power-awareness route lifetime. Finally, the simulation results demonstrate this improvement.