A new algorithm which is W-DV-Hop algorithm

which is based on weighting is proposed for asymmetry distributed wireless sensor networks.The knowledge of weighting is used to carry on the anchor nodes’average hop size

then unknown nodes’ average one-hop distance is estimated more accurate

thereby reducing the impact of positioning precision

when with the average hop size the anchor nodes is used as the network distance of each hop.The simulation results show that under the same conditions

this algorithm has higher localization precision

and can extend the life of the nodes compared to DV-Hop algorithm.