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Blind CFO estimation in OFDM systems

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2 Author(s)
Yingwei Yao ; Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA ; Giannakis, G.B.

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.

Published in:

Signal Processing Advances in Wireless Communications, 2004 IEEE 5th Workshop on

Date of Conference:

11-14 July 2004