Multipath Source Routing in Sensor Networks Based on Route Ranking

Multipath source routing is an effective way to exploit the redundant routes that are usually common in dense sensor networks. In this paper, we present a multipath source routing algorithm that uses a ranking technique to distinguish between the quality of different routes for the same source-destination pair. A ranking coefficient is calculated for each route based on three different metrics- energy, delay and reliability. The number of parallel routes that is considered is governed by the minimum reliability requirements. Simulation experiments are conducted that show that multipath routing can increase the reliability, and dissipate energy more evenly among the nodes.