Abstract: To overcome the disadvantage of multilateral ranging method, consider the location algorithm applied realistic environment, based on the characteristics of DV-Hop, an improved three-dimensional localization algorithm was proposed. The algorithm not only transplants DV-Hop localization algorithm from two dimensions to threcdimensional space outside, also taking into account the algorithm beacon node topology and hops on the localization accuracy, and a Multicollinearity-Based 3D DV-Hop Algorithm(MCB3D DV-Hop) was proposed.The algorithm sets two threshold parameters of hop and multicollincarity, and selects the good beacon node teams to realize the position estimate.Thcoretical analysis and simulations results show that our proposed method works well.

Key words: Multicollincarity, Three dimensional localization, DV-Hop