Contention Window based MAC Protocol in WSN

Abstract

In the proposed work, the virtue of  RL-MAC Protocol have been exploited and for the purpose of clustering much efficient LEACH protocol is utilised where the selection of cluster head is done keeping distance and energy into consideration. In this new proposed work, additional elevation in efficiency is proposed in RL-MAC protocol by using the concept of clock synchronization. In the proposed protocol the sensor node’s clocks will be synchronized according to the MAC time. Whenever the time of the various cluster heads mismatches, then the cluster heads of each cluster corrects their clocks time according to the time of sink node. Further Sensor nodes are synchronized with cluster heads. The presented new technique’s network behaviour has been modelled and simulated in software environment on NS2 platform. The graphical curves advocate that this technique excells previous RL-MAC protocol  in terms of parameters like  energy, throughput and packet loss in the network.