Document Type : Original Article
Department of Engineering and Research Branch, Mazandaran Branch, Islamic Azad University, Mazandaran, Iran
Wireless sensor network consist of many sensor nodesthat deploy in area unattended, these nodes sense area’s eventsand send data to sink, an important property of these nodes is energy constraint, and so considering energy efficiency in theproposed protocols in this area is unavoidable. One of the mostpractical solutions is clustering, that means, instead of sendingraw data by nodes individually, after Cluster head election,nodes form clusters and send their data to cluster head, then cluster head send processed data to sink, and this consume lessenergy. LEACH is one prominent clustering protocol in wsn thatuses probability theory without considering location and energy. In this work we propose a new clustering protocol that solvessome LEACH problems in clustering. Our proposed algorithmimproves the performance and increase the network lifetime.This work uses fuzzy logic theory in two parts in algorithm: 1)CH election and 2) cluster membership. We simulate proposedalgorithm in MATLAB, based on results we can conclude thatour proposed algorithm works better than LEACH.