Cyclostationarity: half a century of research
Signal Processing
Bibliography on cyclostationarity
Signal Processing
A new second-order method for blind signal separation from dynamic mixtures
Computers and Electrical Engineering
A CME based channel estimation approach for MIMO-OFDM systems
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A hybrid CME-LS channel estimation approach for broadband MIMO-OFDM systems
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
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We consider a problem of identifying a multiple-input multiple-output (MIMO) finite impulse response (FIR) system excited by colored inputs with known statistics. We propose a new, nonlinear optimization-based method that involves the power spectra and cross-spectra of the system output. The proposed algorithm is tested for the case of cyclostationary inputs (CDMA scenario) and stationary inputs (SDMA scenario). Simulation results indicate that the proposed scheme works well, even for large order systems, and is robust to noise and channel length mismatch.