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Blind Channel Identifiability for Generic Linear Space-Time Block Codes

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2 Author(s)
Nejib Ammar ; Dept. of Electr. & Comput. Eng., California Univ., Davis, CA ; Zhi Ding

Linear space-time block codes (STBCs) have proven their effectiveness in performance improvement of wireless multiple-input multiple-output communication systems. Their successful decoding, however, requires reliable channel knowledge at the receiver. In this paper, we present a semiblind channel estimation method for linear STBC without the usual code orthogonality condition. We provide a set of identification conditions that are mostly verifiable a priori in terms of code parameters and antenna array configuration. We also present a simple channel estimation algorithm. Finally, we provide simulation results that illustrate the performance of the proposed scheme

Published in:

IEEE Transactions on Signal Processing  (Volume:55 ,  Issue: 1 )