Three-dimensional Wireless Sensor Network Localization Algorithm Based on TOA

With the development of wireless sensor network application,the need of research on three-dimensional wireless sensor network localization become more urgent.This paper proposes one three-dimensional localization algo-rithm based on TOA distance measurement,and analyzed the performance of the algorithm,calculated time synchro-nization error and localization error.Finally it constructed three-dimensional simulation modules based on OMNET++,and implemented the algorithm,educed the localization precision and coverage.