A Study on Indoor Localization with Wireless Networks

Autor:	You-Ting Jheng, 鄭有廷
Rok vydání:	2010
Druh dokumentu:	學位論文 ; thesis
Popis:	98 This thesis investigates the indoor localization based on minimum mean square error (MMSE) estimation for wireless sensor networks (WSN). With three received signal strength (RSS) of the unknown node, a trilateral localization is performed to position its coordinates. However, the mean square error (MSE) of localization is deteriorated by the shadowing effect. Moreover, the MSE depends on the location of reference nodes. Therefore, in this paper, we investigate the effect of the location of reference nodes and the shadowing effect on localization MSE. Simulation results show that the weighted on distance variance of outer distances between reference nodes can improve more accuracy of localization.
Databáze:	Networked Digital Library of Theses & Dissertations
Externí odkaz:	http://ndltd.ncl.edu.tw/handle/55710927915777728352 Zobrazit plný text záznamu