ENERGY EFFICIENT SLEEP SCHEDULING WITH DISJOINT BACKBONE NODES AND DUTY CYCLE WITH OPTIMIZATION

Wireless Sensor Networks (WSNs) growing day by day for flexible and fast communication which uses by many applications. Energy is the important parameter in WSN for long life communication. In this paper we present “Energy Efficient sleep scheduling with disjoint backbone nodes and duty cycle with optimization.”. Backbone scheduling is designed for WSNs has redundant sensor nodes which form multiple disjoint backbones which work alternatively to increase the life of network by saving the energy. In VBS, traffic is only passing through the disjoint backbone, so that time other backbone is in sleep mode i.e. switch off their radios to save energy. The utilization of multiple backbones makes sure that the proper energy consumption of all sensor nodes is done, which fully utilizes the energy and increase the life of sensors than the existing techniques. In this paper we find the disjoint set of backbones such that all nodes in backbone are one hop away from set & maximum no. of sensor nodes are one hop away from that set which definitely improve the Quality of Service(QoS). Because of this one hop distance between sensor nodes and backbone we control the traffic through the proper utilization of sensor nodes and backbone node.