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Blind Channel Estimation in MIMO-OFDM Systems
Wei BAI Chen HE Ling-ge JIANG Hong-wen ZHU
Publication
IEICE TRANSACTIONS on Communications
Vol.E85-B
No.9
pp.1849-1853 Publication Date: 2002/09/01 Online ISSN:
DOI: Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technology Keyword: mobile communication, channel estimation, MIMO-OFDM systems, blind, identifiability,
Full Text: PDF>>
Summary:
In this letter, we investigate the blind channel estimation in MIMO-OFDM systems based on the second-order statistics of the channel outputs only. We exploit the cyclostationarity induced by OFDM with cyclic prefix, establish the sufficient identifiability conditions, and develop a subspace algorithm. Finally, we demonstrate the validity of the algorithm by computer simulations.
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