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An Equally Distributed Cluster Heads Algorithm Based on Fuzzy Logic

  

  1. (School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, China)

     

  • Received:2015-11-26 Online:2016-04-14 Published:2018-09-30

Abstract:

Clustering techniques are used in clustering routing protocols to increase network lifetime. Cluster head election is the key aspect of clustering techniques. For the process of cluster head election, a cluster election algorithm based on fuzzy logic with two rounds has been proposed, which includes two fuzzy descriptors: remaining energy of the sensor nodes and distance of each node to the base station. The first round of the cluster head election algorithm based on fuzzy logic does not take the distance between the two cluster heads into account, two cluster heads may be closely placed. A secondary election of cluster heads has been proposed. For the clusters of the cluster heads which are closely placed, we calculate the link cost among the nodes in the cluster. The node having the minimum link cost will be elected as new cluster head, which makes the cluster heads equally distributed. Compared to the LEACH algorithm and the first round of the cluster head based on fuzzy logic, the proposed approach has been proved to be the best in terms of total number of nodes alive in the network and residual energy of the network.

Key words:

text-indent: 21pt"> routing protocol, cluster head election, fuzzy logic, link cost

CLC Number: