Title :
Blind CFO estimation in OFDM systems
Author :
Yao, Yingwei ; Giannakis, Georgios B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
We rely on a kurtosis-type criterion to derive blind carrier frequency offset (CFO) estimation algorithms for various orthogonal frequency-division multiplexing (OFDM) systems. Identifiability and performance of the resulting blind CFO estimators depend on the channel´s frequency selectivity and the input distribution. We also apply this approach to blind CFO estimation in multiinput multioutput (MIMO) OFDM systems. The effects of multiple antennas are addressed analytically and tested via simulations.
Keywords :
MIMO systems; OFDM modulation; antenna arrays; channel estimation; frequency estimation; CFO; MIMO systems; OFDM systems; blind carrier frequency offset estimation; channel frequency selectivity; kurtosis-type criterion; multiinput multioutput systems; multiple antennas; orthogonal frequency-division multiplexing; Analytical models; DH-HEMTs; Digital communication; Digital video broadcasting; Frequency division multiplexing; Frequency estimation; MIMO; OFDM; Testing; Wireless LAN;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2004 IEEE 5th Workshop on
Print_ISBN :
0-7803-8337-0
DOI :
10.1109/SPAWC.2004.1439263
