Improved Leach Communication Protocol for WSN

LEACH is a classical communication routing protocol designed for WSN to reduce the energy consumption of each sensor node. Based on the original LEACH protocol, we propose a new method of choosing cluster-heads which decreases unnecessary consumption of energy spent on computing of each node during each round. Because the traditional choosing formula neglecting to the change of nodes´ energy will make the nodes acting as cluster-heads (CHs) too many times die early owing to consume too much energy. In order to make the energy distribute more even in the network, the consideration of the dynamic change of sensor nodes´ energy will be introduced during the selection of CHs. Simulations show that our improved protocol performs better than the original LEACH.