Date Added: Jun 2009
Wireless Sensor Networks (WSN) are currently receiving significant attention due to their unlimited potential. These networks are used for various applications, such as habitat monitoring, automation, agriculture, and security. The efficient node-energy utilization is one of important performance factors in wireless sensor networks because sensor nodes operate with limited battery power. In this paper, the authors proposed the MiSense hierarchical Cluster based Routing Algorithm (MiCRA) to extend the lifetime of sensor networks and to maintain a balanced energy consumption of nodes. MiCRA is an extension of the HEED algorithm with two levels of cluster heads. The performance of the proposed protocol has been examined and evaluated through a simulation study. The simulation results clearly show that MiCRA has a better performance in terms of lifetime than HEED.