The International Journal of Innovative Research in Computer and Communication Engineering
Wireless Sensor Network (WSN) consist of a large number of small and low cost sensor nodes powered by small batteries and equipped with various sensing devices. Usually, for many applications, once a WSN is deployed, probably in an inhospitable terrain, it is expected to gather the required data for quite some time, say four years. Since each sensor node has limited energy, these nodes are usually put to sleep to conserve energy and this helps to prolong the network lifetime. The proposed routing protocols do not consider energy of the nodes while selecting routes which leads to early exhaustion of nodes and partitioning of the network.