Title :
Bounds and algorithms for time delay estimation on parallel, flat fading channels
Author :
Kozick, Richard J. ; Sadler, Brian M.
Author_Institution :
Bucknell Univ., Lewisburg, PA
fDate :
March 31 2008-April 4 2008
Abstract :
We study time delay estimation (TDE) on parallel channels with flat fading. Several models for the channel gains are considered, and for each case we present the the maximum likelihood estimator (MLE), the Cramer-Rao bound (CRB), and the Ziv-Zakai bound (ZZB). The bounds facilitate an analysis of the effects of fading and diversity on TDE accuracy over parallel channels. Computer simulations of the mean-squared error of the MLEs confirm the validity of the bounds.
Keywords :
channel estimation; delay estimation; fading channels; maximum likelihood estimation; mean square error methods; Cramer-Rao bound; MLE; Ziv-Zakai bound; channel gain; maximum likelihood estimator; mean-squared error method; parallel flat fading channels; signal processing; time delay estimation; AWGN; Computer simulation; Delay effects; Delay estimation; Diversity methods; Fading; Frequency estimation; Maximum likelihood estimation; Rayleigh channels; Signal processing; Delay estimation; diversity methods; error analysis; fading channels; maximum likelihood estimation;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1483-3
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2008.4518134
