Abstract:
In recent years, Wireless Sensor Networks (WSNs) has many applications in real-time.
In WSNs, nodes are deployed in environment where no human intervention is possible.
Because of its application, power expenditure is very high in WSNs and nodes are battery
powered which are discharged in some time. Life-time of network is critical issue in
WSNs which has to be improved. Many routing protocols are existed to enhance its
life by reducing the power utilization of nodes in network. LEACH is the famous and
best routing protocol used to boost the network life. In this work, Fuzzy logic is used to
calculate the probability of each node to become cluster head in current round considering
the two factors, one is distance of each node from sink and other is residual energy of each
node in heterogeneous network to elevate the life-time of nodes of network. Performances
are compared, which shows that there is e ective increment in the life-time of nodes of
WSNs.
