Improving Network Lifetime using Fuzzy Logic in Cluster-based WSN Protocol

A wireless sensor network refers to a network in which Nodes equipped with sensors capable of collecting data in the real world are configured wirelessly. Since the sensor Node is configured wirelessly, a limited power such as a battery is used. Therefore, if the battery of the sensor Node is exhausted, the Node can no longer be used. If a certain number of Nodes become unavailable, the network may not operate normally. There are many wireless sensor network Protocols to increase energy efficiency in order to maintain the network lifetime for a long time, and LEACH is a typical Protocol among them. The LEACH Protocol is a cluster-based Protocol that divides the sensor field into clusters, the Nodes in the cluster transmit data to the Cluster Head, and the Cluster Head transmits data to the Base Station, including the received data. Therefore, the network lifetime can be reduced or increased depending on how the cluster is configured. In the case of the LEACH Protocol, clusters are formed by Cluster Head election threshold, but this may not always be optimal clusters. To improve this, we will improve the Cluster Head election threshold method of LEACH Protocol and improve the Cluster Head election method by using Fuzzy logic.