Lifetime maximization on Scalable Stable Election Protocol for Large Scale traffic engineering

Recently, Wireless Sensor Networks (WSNs) are getting more fame because of low cost and easy to manage and maintain. WSNs consists of sensor nodes and a Base Station (BS). Sensor nodes are responsible to sense, transmit and receive the data packets from sensing field, and the BS is responsible to collect this data and covert it into readable form. The main issue in this network is lack of power resources. As sensor nodes are restricted to limited energy, so researchers always aims to produce an energy efficient clustered routing protocol. To make the efficient routing protocol, heterogeneity of sensor nodes is a best possible solution. 'Stable Election Protocol' was the first heterogeneous network and proposed two level of heterogeneity. SEP Protocol not only improved the network lifetime but also improved the stability of sensor nodes. In order to maximize the network lifetime, we propose the scalability of SEP routing protocol (S-SEP) to check the reliability in large scale networks for traffic engineering. We compare the results of standard SEP routing protocol with fourth level of heterogeneity. Simulation results proves that S-SEP protocol works more better in larger networks.