Many wireless sensor network applications require energy efficient communication between nodes in the network. Sensor networks are of limited resources. Due to this limitation, the routing between the nodes is one of the important aspects of the life span of the total network. Optimization of the routing algorithm is therefore an important decision point in the design of the sensor network. Our study establishes that optimization can increase the life span of the network. We implement an optimization algorithm in the total network, which is capable of saving energy on communication. The energy saving in communication helped us to increase the life span of the network.