Abstract
In recent years, Wireless Sensor Networks (WSNs) have been promising approaches for a variety of application monitoring and capturing the required data from the environment. Due to the restricted communication range and high density of sensor nodes, routing in WSNs has been considered an important field of research over the past decade. The most popular protocol for clustering in WSNs is Low Energy Adaptive Clustering Hierarchy (LEACH) which is based on adaptive clustering technique. The factors affecting LEACH efficiency include Cluster Head (CH), topology structure and routing algorithm. This paper provides in the past years the taxonomy of various clustering and routing techniques based on LEACH in WSNs. The paper highlights the primary principle of each improved protocol and emphasize on their advantages and disadvantages compared to the LEACH.
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