Abstract
AbstractAn improved DV-Hop localization algorithm for wireless sensor networks is presented in this paper. The new algorithm improved two parts: (1) beacon nodes at the borderland of network are fixed (2) it uses Least square method to correct the average distance per hop. Then based on the DV-HOP, each node obtains the distances and hops. Unknown nodes can calculate their location with maximum likelihood estimation. Node ratio and network connectivity are simulated with DV-Hop localization algorithm and our method. it shows that the location error of the proposed algorithm is lower than DV-HOP algorithm while the location accuracy is higher.KeywordsWireless sensor networksNode localizationDV-HOPPosition error EEACC: 6150P
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