Title :
Robust wide-range frequency estimator for real data OFDM systems
Author :
Al-Dweik, A. ; Renfors, M. ; Al-Araji, S. ; Hamila, R.
Author_Institution :
Etisalat Univ. Coll., Sharjah
Abstract :
In this contribution, a robust carrier frequency offset estimator is proposed for orthogonal frequency division multiplexing (OFDM) systems with real data symbols. The new technique is totally blind, has a wide estimation range, and can be applied to OFDM systems with subcarrier frequency spacing of half the symbol rate. Analytical and simulation results have shown that the proposed estimator is highly efficient and has an estimation range that is much larger than the traditional half frequency spacing limit.
Keywords :
OFDM modulation; frequency estimation; OFDM systems; orthogonal frequency division multiplexing systems; robust carrier frequency offset estimator; AWGN; Binary phase shift keying; Fading; Frequency estimation; Frequency synchronization; Intersymbol interference; OFDM; Quadrature phase shift keying; Robustness; Timing; OFDM; carrier recovery; frequency estimation;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2007. SPAWC 2007. IEEE 8th Workshop on
Conference_Location :
Helsinki
Print_ISBN :
978-1-4244-0955-6
Electronic_ISBN :
978-1-4244-0955-6
DOI :
10.1109/SPAWC.2007.4401403
