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It is the core issue of researching that how to prolong the lifetime of wireless sensor network. The purpose of this paper is to illustrate a clustering protocol LEACH-PF, which is a multihop routing algorithm with energy potential field of divided clusters. In LEACH-PF, the network is divided into a number of subnetworks and each subnetwork has a cluster head. These clusters construct an intercluster routing tree according to the potential difference of different equipotential fields. Thedoi:10.1155/2013/829861 pmid:24288507 pmcid:PMC3818980 fatcat:wtgmmrjs2ngcdc7cw4h6mv5qsa