Implementation of MPLS routing in traditional LEACH

Wireless Sensor networks composed of enormous number of micro-sensors are capable of fetching and transporting different types of data to sink. The deployment of sensor nodes need a battery back-up necessary for its normal functioning but practically it becomes impossible for any network to exchange the batteries at regular intervals of time. Therefore, routing protocols having higher energy efficiency are being used primarily to enhance the life expectancy of network. Traditional LEACH (Low Energy Adaptive Clustering Hierarchy) incorporated in Wireless Sensor Networks employs Time Division Multiplexing Access intended for transmission of data from multiple number of nodes to cluster heads and finally from cluster head to base station. In our proposed work, we apply “labels” to each data packet in order to fix the priority bits and then route these priority set packets to the cluster head and then fused data-cells are routed to the base station using multiprotocol label switching tunneling algorithm. Using the MPLS (Multi-Protocol Label Switching) routing in LEACH will transform it into multi-hop which will reduce the average energy dissipation of cluster head in each cluster and results incrementing the life-time of network. Relay Nodes that are higher power nodes are used to collect and send the data from cluster head to sink in order to decrement the energy loss in each cluster head.