A Comparative Study Of Clusterhead Selection Algorithms In Wireless Sensor Networks

In Wireless Sensor Network, sensor nodes life time is the most critical parameter. Manyresearches on these lifetime extension are motivated by LEACH scheme, which by allowingrotation of cluster head role among the sensor nodes tries to distribute the energy consumptionover all nodes in the network. Selection of clusterhead for such rotation greatly affects theenergy efficiency of the network. Different communication protocols and algorithms areinvestigated to find ways to reduce power consumption. In this paper brief survey is taken frommany proposals, which suggests different clusterhead selection strategies and a global view ispresented. Comparison of their costs of clusterhead selection in different rounds , transmissionmethod and other effects like cluster formation, distribution of clusterheads and creation ofclusters shows a need of a combined strategy for better results.