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Improved Dv-Hop Algorithm Based on WSN

ZHANG Pin*,XU Zhifu,SUN YanSchool of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China  
Dv-Hop Algorithm is one of the Range-Free Localization Algorithms for Wireless Sensor Networks.The simulation results show that this algorithm can yield big average error and poor stability with low beacon node density.This paper proposes an improved Dv-Hop algorithm because the beacon node at the borderland of the network is fixed.The simulation results show that this algorithm can yield higher positioning accuracy,better stability and energy consumption compared to the Dv-Hop in the same node density.
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