Date Added: Apr 2013
The use of Wireless Sensor Networks is increasing day by day and at the same time, it faces the problem of energy constraints in terms of limited battery lifetime. In this paper, the authors propose an energy efficient algorithm in which network is divided into five sectors with an equal angle for maintaining uniformity of cluster heads. This algorithm is improved EE-LEACH-MIMO algorithm in which data from the sensor nodes is transmitted through shortest path by nearest neighbor algorithm in multi-hop fashion and results in reduction of energy consumption in the network. The residual energy and the location of each node from sink are considered for the selection of cluster head and co-operative node for MIMO system.