Research Article
Blind estimation of multi-CFO for distributed MIMOOFDM system in frequency-selective fading channels
@INPROCEEDINGS{10.1109/CHINACOM.2009.5339922, author={Yingtao Niu and Qun Chen and Jianzhong Chen}, title={Blind estimation of multi-CFO for distributed MIMOOFDM system in frequency-selective fading channels}, proceedings={ChinaCom2009-Wireless Communications and Networking Symposium}, publisher={IEEE}, proceedings_a={CHINACOM2009-WCN}, year={2009}, month={11}, keywords={multi-CFO; cyclostationarity; LS; MIMO-OFDM}, doi={10.1109/CHINACOM.2009.5339922} }- Yingtao Niu
Qun Chen
Jianzhong Chen
Year: 2009
Blind estimation of multi-CFO for distributed MIMOOFDM system in frequency-selective fading channels
CHINACOM2009-WCN
IEEE
DOI: 10.1109/CHINACOM.2009.5339922
Abstract
A novel blind multiple carrier frequency offset (multi- CFO) estimation algorithm is developed for distributed multiinput multi-output orthogonal frequency division multiplexing (MIMO-OFDM) systems over frequency-selective fading channels. In the algorithm, different multiple CFOs are estimated by cyclostationarity (CS) of the received signals and least square (LS) criterion. Theory analysis shows that the blind algorithm adapts to synchronization under any distributed stationary noise. Meanwhile, it has no special limitation on the number of transmit and receive antennas. Simulation results verify that the proposed algorithm maintains stability at low signal-to-noise ratio (SNR). It can also achieve excellent performance in single-input singleoutput (SISO) OFDM systems.