How to better improve the node positioning has always been the research focus of WSN.On the basis of DV-HOP location algorithm, the paper makes improvement in three aspects for unknown node location through error accuracy, anchor node stability, backward learning selection and least squares estimation. It introduce chaos optimization algorithm to location error accuracy, stability concept to anchor node processing, backward learning and least squares estimation to unknown node location so as to make improvement. The improved algorithm conducts simulation experiment in communication radius and ...
