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

fYear

2009

fDate

13-16 Sept. 2009

Firstpage

3064

Lastpage

3068

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PIMRC.2009.5449864

Filename

5449864