AN EFFICIENT METHOD FOR DATA AGGREGATION IN WSN

In wireless sensor network one of the major issues is maximizing lifetime of the network. In general all the sensor node sense the similar information sends it to the base station in this process the requirement of energy become very high. To decrease the energy consumption there is need to eliminate redundancy and clustering is also used. In the process of data aggregation the intermediate node which receives multiple input packets perform aggregation of data and perform single output packet in network. In this process number of redundant packet will reduce. But this redundancy sustains the reliability. In this paper there are different issues of data aggregation focused on such issues are delay, redundancy elimination, accuracy and traffic load and various methods are mention to solve this issues. In this paper Energy Efficient Cluster Based Data Aggregation algorithm is used we propose four phases Cluster formation, Cluster Head election, Data Aggregation and Maintenance. All the clusters send data to only corresponding local cluster head. The data are generated from sensor node neighboring are redundant and highly correlated thus data aggregation are created by the cluster head which reduce the redundant packet transmission to avoid the unnecessary set up of message transmission clusters are formed in a non periodic manner. Further propose the issues of data aggregation such as delay and accuracy in wireless sensor network