Title :
NPML based range measure for localization in interference limited wireless sensor networks
Author :
Bhatia, Vimal ; Mulgrew, Bernard
Author_Institution :
AmberFin Ltd., Basingstoke, UK
Abstract :
A novel method of estimating the range for localization in a interference limited wireless sensor network (WSN) is proposed in this paper. The received sensor signal indication (RSSI) algorithm is the most common algorithm for sensor range measurement, however in interference limited environments it is prone to erroneous estimation. Thus a non-parametric maximum likelihood (NPML) adaptive estimator for channel localization in interference limited channels is proposed for localization in OFDM based WSN. A complete receiver architecture based on NPML is also introduced. Performance of the proposed algorithm is shown using simulation.
Keywords :
adaptive estimation; channel estimation; interference (signal); maximum likelihood estimation; sensor placement; wireless sensor networks; NPML; channel localization; interference limited channels; non-parametric maximum likelihood adaptive estimator; received sensor signal indication; sensor localization; sensor range measurement; wireless sensor networks; Channel estimation; Estimation; Interference; Kernel; OFDM; Receivers; Wireless sensor networks;
Conference_Titel :
Cognitive Wireless Systems (UKIWCWS), 2010 Second UK-India-IDRC International Workshop on
Conference_Location :
New Delhi
Print_ISBN :
978-1-4244-9146-9
DOI :
10.1109/UKIWCWS.2010.5724227
