Title :
Experimental Validation of a New Pedestrian Speed Estimator for OFDM Systems in Indoor Environments
Author :
Pricope, Bogdan ; Haas, Harald
Author_Institution :
Sch. of Eng. & Sci., Jacobs Univ., Bremen, Germany
Abstract :
This paper investigates a new pedestrian speed estimation method for OFDM systems. Correlation coefficients are calculated from the wideband channel frequency response and the instantaneous coherence time is estimated for a certain envelope correlation coefficient. The performance of the proposed method is verified by means of an experimental system in order to predict the reliability of the estimator. The algorithm gives an average error of less than 2% for pedestrian speeds and its computational complexity is low.
Keywords :
OFDM modulation; correlation methods; indoor radio; mobile radio; pedestrians; radionavigation; OFDM system; envelope correlation coefficient; indoor environments; instantaneous coherence time; pedestrian speed estimator; wideband channel frequency; Coherence; Correlation; Doppler effect; Estimation; Frequency response; OFDM; Vectors;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE
Conference_Location :
Houston, TX, USA
Print_ISBN :
978-1-4244-9266-4
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2011.6134223
