Abstract
In the applications of Wireless Sensor Networks (WSNs), the factor affecting the performance is energy consumption. In all operations in the WSN, Data transmission consumes a lot of energy because of its frequency. LEACH is proposed to reduce transmission distance. Cluster Head (CH) is selected randomly without any parameter, so CHs distribution is uneven and the distance between some nodes and their connected nodes is remote, which causes shortening system lifetime. In this paper, we proposed a new LEACH-based algorithm. The main purpose of new algorithm is to make CHs distribution even. In the improved algorithm, a node connects to a CH or acts as a temp CH based on the distance to the closest CH. The results of simulation show that improved LEACH algorithm increases energy efficiency and prolongs the network lifetime.
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