Title :
Time delay estimation for KSP-OFDM systems in multipath fading channels
Author :
Van Welden, Dieter ; Steendam, Heidi ; Moeneclaey, Marc
Author_Institution :
TELIN Dept., Ghent Univ., Ghent, Belgium
Abstract :
In this paper we present a time delay estimation algorithm for known symbol padding (KSP) orthogonal frequency division multiplexing (OFDM) systems. The estimator exploits both the pilot symbols in the guard interval and on the pilot carriers, and takes the frequency selectivity of the fading channel into account. Our simulations indicate that the time delay estimator gives rise to only a small degradation of the bit error rate (BER) performance, as compared to a receiver with perfect synchronization.
Keywords :
OFDM modulation; delay estimation; error statistics; fading channels; multipath channels; synchronisation; KSP-OFDM systems; bit error rate; frequency selectivity; known symbol padding orthogonal frequency division multiplexing systems; multipath fading channels; time delay estimation; Bit error rate; Delay effects; Delay estimation; Fading; Frequency estimation; Frequency synchronization; Interference; Maximum likelihood estimation; OFDM; Time domain analysis;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5449864
