Title :
WSN Multilateral Localization Algorithm Based on MLE
Author :
Gong, Renxi ; Zhao, Jiwei ; Yang Huang ; Meng, Xiaobi
Author_Institution :
Sch. of Electr. Eng., Guangxi Univ., Nanning, China
Abstract :
Node localization plays a key role in the applications of WSN(Wireless Sensor Networks), and it is the hot spot of the research of the WSN nowadays. In this paper, a localization algorithm is proposed which is based on a MLE(Maximum Likelihood Estimation) method and a new RSSI(Received Signal Strength Indicator) ranging model. The selection of ranging model, the optimal choice of model parameters and the number of reference points are discussed. The experiment indicates that the error of localization can be controlled in 1 m with the new model.
Keywords :
maximum likelihood estimation; wireless sensor networks; MLE; RSSI ranging model; WSN multilateral localization algorithm; maximum likelihood estimation method; received signal strength indicator; reference points; wireless sensor networks; Accuracy; Distance measurement; Equations; Mathematical model; Maximum likelihood estimation; Wireless communication; Wireless sensor networks; Localization; MLE; RSSI; Ranging; WSN;
Conference_Titel :
Network Computing and Information Security (NCIS), 2011 International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-61284-347-6
DOI :
10.1109/NCIS.2011.183
