A linearization reference node selection strategy for accurate multilateration localization in Wireless Sensor Networks

Localization algorithm is a important issue in Wireless Sensor Networks. Multilateration is one of the most well-known distributed localization methods. In this paper, we analyze the effect that the reference node selection on positioning results, and propose a linearization reference anchor node selection strategy to improve the localization accuracy. The proposed sLS method and sWLS method don´t require additional hardware, and can be easily implemented. Finally, simulation results are conducted to demonstrate the efficiency of the sLS method.