A distributed energy-efficient unequal clustering (DEEUC) algorithm was proposed for wireless sensor net-works by research current routing algorithms. The core of DEEUC has three parts. Firstly
when tentative clusterheads are selected
an average energy factor was introduced to balance the residual energy of the whole network nodes so that it may improve the network energy efficiency. Secondly
an energy consumption ratio function was proposed to balance energy-efficient of each node. Finally
an unequal clustering algorithm was proposed for single-hop homogeneous networks. Through both theoretical analysis and numerical results
it is shown that DEEUC prolongs the network lifetime significantly against the other clustering protocols such as LEACH-C and EECS. Under general instance
DEEUC may prolong the lifetime up to 30% against EECS.