Cluster based fault tolerant architecture for multicasting data in wireless sensor network

Abstract

The tremendous applications of wireless sensor networks have led the way for its extensive growth and demand. The multicasting applications like streaming data/video is very challenging in wireless sensor network as they should be delivered quickly without any loss. In this paper a fault tolerant multicast routing mechanism for streaming data is proposed to achieve this goal. Sensor nodes are clustered based on location and cluster heads are responsible for delivering data to destinations. A backup cluster head is also provided in each cluster to improve the system resilience. Simulations were conducted in two scenarios one by selecting cluster heads considering node's energy and other by considering node's energy and mobility speed. Simulation results show that the latter approach achieves 11.4% decrease in end to end delay, 17.5% increase in throughput and 14.43% decrease in control overhead than former approach.