A Novel Localization Method based Search for Wireless Sensor Network
Keywords:
Internet Of Things (IOT), Wireless Sensor Networks (WSNs), Approximate Point-In-Triangulation Test (APIT), Received Signal Strength Indicator (RSSI) Technology, Signal Strength.Abstract
For IOT wireless sensor networks, there is large positioning error in APIT
positioning algorithm, an improved APIT positioning algorithm is proposed. APIT test is
easy to produce InTo Out and OutToIn errors to affect positioning accuracy, a new interior
point test method is designed; the new algorithm further reduce the triangular area in the
traditional APIT positioning algorithm through the median line, the positioning accuracy is
improved. The algorithm does not require any additional hardware support to improve
complexity. The simulation results show that the improved algorithm has high localization
accuracy in the network anchor node density and different communication radius, it can
meet the needs of most localization wireless sensor networks.