Localization algorithm using improved RSSI

The RSSI measuring localization method has attracted extensive attention due to its convenient acquisition of signals, low cost and small energy consumption. However, the actual environment of sensor node deployment is varied, which makes the localization results based on RSSI measuring usually unstable. In accordance with various factors such as the randomness of sensor node deployment and the impact of actual environment on the measuring signals, this paper has proposed a new RSSI location estimation algorithm. This algorithm can increase the localization accuracy to the maximum during the measuring phase and coordinate calculation phase. The theoretical analysis and simulation result show that this algorithm has higher accuracy and stability than previous algorithms of the same kind. © 2013 Binary Information Press.