Research on Node Location in Wireless Sensor Network
Gao Bao-cheng · Computer and Modernization · 2010
Wireless sensor networks have been widely applied to all areas of society.Node location is one of the key technologies in wireless sensor network.Using the strength of known emission signal,the receiver node calculates the loss in the dissemination process according to signal strength RSSI received,then transfers the loss to distance according to the theory or experience signal propagation model.RSSI-based location is a hot spot in nowadays because of its low hardware requirements.For resolving biggish error in RSSI-based location,the paper presents a new method of location using collation of RSSI(Received Signal Strength Indicator) for range measurement between nodes and choose some beacon nodes which can give smaller distance error in sensor network.Simulation results show that this algorithm has a better performance than classical RSSI algorithm.