Development of Survival Path Routing Protocol for Scalable Wireless Sensor Networks

Applications of wireless sensor networks span from the agricultural field to the battlefield and from smart city to smart city health care. There are certain applications where millions of sensor nodes or motes are deployed to sense the environmental parameters. However, in certain applications like health care and smart city applications, few hundreds of nodes can solve the purpose. Routing in energy-constrained networks like WSN is a challenging task. Parameters like consumed energy, congestion and signal to noise ratio etc. are considered to find a routing path in WSN. The Survival Path Routing (SPR) protocol is an earlier version of the work proposed here. The said protocol fails to provide a better result when the number of nodes in the network is increased. Thus a Scalable Survival Path Routing (SSPR) protocol is proposed where the method of clustering is applied to meet the efficiency of a scalable network. Weights of the nodes are computed to choose the cluster heads among them. It is observed that the proposed protocol SSPR outperforms SPR and Directed Diffusion protocol in terms of packet delivery ratio, end to end delay and throughput.