Energy Efficient Data Gathering in Wireless Sensor Network?

In Wireless Sensor Networks (WSN), is used in many applications. Numbers of sensor nodes are deployed to gather the data from environment and process over it. During the formation of WSN main issue which comes under consideration is battery life of the sensor nodes. Once the sensor nodes deployed in sensor network, there maintains becomes difficult. To save the energy of sensor nodes we allow the mobile sink to move in the field and gather the data from the sensor nodes. In this paper we use mobile sink to gather the data from sensor nodes to conserve the battery life of network. Again there is a chance of creation of loopholes during the data gathering process. There is a need to detect the loopholes and to correct them. In this paper we use contki algorithm to find loopholes and remove them from the network.