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Blind Channel Identification for MIMO Single Carrier Zero Padding Block Transmission Systems

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2 Author(s)
Chen, Yi-Sheng ; Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu ; Ching-An Lin

We propose a blind identification method for MIMO single carrier zero padding block transmission systems. The method uses periodic preceding on the source signal before transmission. The estimation of channel impulse response matrix consists of two steps: (i) obtain the channel product matrix by solving a lower-triangular linear system and (ii) obtain the channel impulse response matrix by computing the positive eigenvalues and eigenvectors of a Hermitian matrix formed from the channel product matrix. A sufficient condition for identifiability is simply that the channel impulse response matrix is full column rank. The design of the precoding sequence to minimize the noise effect in covariance matrix estimation is proposed. Simulation examples are used to demonstrate the performance of the method

Published in:

Signal Processing Advances in Wireless Communications, 2006. SPAWC '06. IEEE 7th Workshop on

Date of Conference:

2-5 July 2006