Improvement of Cluster Heads Choosing Algorithm Based on LEACH Protocol

With the development of the Wireless Sensor Network (WSN), the number of sensor nodes in WSN is so large while one single node´s resource is quite limited. One of the key goals of designing routing protocol of WSN is to reduce the energy consumption and maximize the networks´ overall survival time. ICCA presents one cluster heads choosing algorithm based on the Low-Energy Adaptive Clustering Hierarchy (LEACH) protocol to save the network energy and extend its survival life. This improved algorithm can evenly distribute the energy load among all nodes, and guarantee the quality of communications by choosing the cluster heads with the enlarged energy, and also avoid the problem that the cluster heads dies ahead of common nodes. Simulation results show that this algorithm is effective and great improvement has been achieved.