A Comparison of LEACH-Like Protocols to Improve Power Consumption Efficiency in Wireless Sensor Networks

Many clustering-based routing techniques are widely used in wireless sensor networks due to their low power consumption and longer network life. One of the most well-known protocols is LEACH, which assisting in the decrease of sensor energy usage during the data aggregation and transmission phase to the base station. However, the cluster head selection process is regarded as a drawback that reduces the protocol’s efficiency. Recently, researchers have attempted to develop approaches relying on several optimization methods. In this article, we attempt to present the LEACH methodology, highlighting its flaws, then discussing some of the protocol enhancements that has improved the efficiency of the protocol.