Published Paper Details:

The major constraint when Wireless Sensor Networks is considered is the energy consumption. Since the sensor nodes are deployed in a rough terrain with unpredictable environment conditions the nodes fail mainly due to battery drain, and in most cases it is impossible to replace the batteries. So it will be wise to use an appropriate routing algorithm for finding the best available path that consumes lesser energy and reduces the delay. One such type of routing protocol is Opportunistic Routing. In this type of routing each packet, each hop and the next relay node is found dynamically by selecting the node that captures the packet transmission .Here each node maintains a group of next hop nodes called as the forwarder list and next relay node is selected from that list according to the type of opportunistic routing used. The Energy Efficient Selective Opportunistic Routing, reduces the size of the forwarder list by including only the nodes that are nearer to the destination. In the next step the list is arranged according to their distance from the destination, the node that has the highest priority will act as the next relay node that is the selected relay node will be the one that is nearer to the destination. It also routes the acknowledgement using the opportunistic routing this is done to balance the energy spend by the nodes for transmission and reception. It provides better results than many existing opportunistic routing protocols in terms of end-to-end delay, and network life time.