LEACH-G: an Optimal Cluster-heads Selection Algorithm based on LEACH

Abstract

<p class="Abstract"><span lang="EN-US">A</span><span lang="EN-US">s a classic clustering algorithm</span><span lang="EN-US">,</span><span lang="EN-US"> LEACH is widely used in wireless sensor networks. </span><span lang="EN-US">Due to the random cluster head selection process, LEACH does not guarantee optimization for the number and position of cluster heads</span><span lang="EN-US">. </span><span lang="EN-US">In order to further optimize LEACH, </span><span lang="EN-US">a</span><span lang="EN-US">n optimal energy-efficient cluster-heads selection algorithm</span><span lang="EN-US"> LEACH-G</span><span lang="EN-US"> for LEACH protocol is presented. We calculate the optimal number of cluster heads based on energy model for LEACH algorithm, and further set forth on LEACH-G algorithm for optimal cluster heads. We use NS2 simulation platform to compare LEACH-G with LEACH</span><span lang="EN-US">. B</span><span lang="EN-US">y calculating the optimal number of cluster-heads, the energy consumption of the sensor nodes in LEACH-G algorithm can be more evenly distributed in the wireless sensor networks to avoid too much energy consumption of single node to untimely death, which affect the network life cycle.</span><span lang="EN-US"> </span><span lang="EN-US">Compared with LEACH protocol, the simulation results demonstrate that LEACH-G algorithm can effectively reduce the energy consumption and increase the system lifetime.</span></p

Modification of Leach Protocol for Improving the Stability Period and Lifetime of Wireless Sensor Networks

“…Amplification of two different signals for this purpose is a difficult problem. Chen et al (2013) proposed taking uncertainty in number of CHs into account and their location. Optimal CHs are given by the equation proposed.…”

Study of various energy efficient protocol in wireless sensor network

“…Some of the work of researchers in WSN clustering protocols have described below. Hongwei Chen et al (2013) [19] defined that LEACH is most prominent energy efficient mechanism that is widely used for enhancing the performance of the WSN. LEACH performs the random selection.…”

Load‐balanced energy efficient clustering protocol for wireless sensor networks

“…The first and most famous proposed protocol to reduce energy consumption using adaptive clustering of nodes is lowenergy adaptive clustering hierarchy (LEACH) [19] protocol. After this protocol, until today many and various clustering based protocols have been proposed that all of them attempt to overcome the challenges involved in this protocol of which [20][21][22] protocols can be noted. In this protocol, in each round cluster heads are selected, then the non-cluster head nodes give information to the nearest cluster head and the cluster head, after collection and compression of data, sends the ultimate data to the main centre for further processing.…”