Improvement of DV-Hop positioning algorithm in wireless sensor networks
Node localization plays an significant importance role in wireless sensor network.DV-Hop algorithm is a range free algorithm that is widely used of its simple calculation and easy implementation.Traditional DV-Hop algorithm cannot provide relatively better localization accuracy.To ensure the accuracy of localization,an improved DV-Hop localization algorithm is proposed.Under this localization algorithm,using a novel weighted error corrected the average jump distance of the anchor node,and then adopt two-dimensional hyperbolic function instead of the classic trilateration\least square method to determine the locations of unknown nodes,which are very close to their actual locations.Simulations are conducted to validate the accuracy of our proposed localization algorithm in wireless sensor networks.
wireless sensor networknode locationDV-Hop algorithmweighted erroraverage hop distance
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