A Strategy to Maximize Network Lifetime in Wireless Sensor Networks

Abstract

In WSN energy depletion is one of the prime issues to address, one of the most efficient ways for extending the lifespan of the network is to introduce heterogeneity. Heterogeneous sensor network can be described as a network which contains some special nodes with varying computing power and sensing range. Adding heterogeneity also helps in maintaining the overall load of the network. In order to achieve maximum lifetime placement of such heterogeneous nodes in optimum locations is integral. By integrating particle swarm and ant colony optimization techniques, we have proposed an efficient deployment and dynamic routing mechanism which is simulated in matlab. The results indicates that the proposed methodology maximizes the network lifetime drastically.