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Constant Modulus Based Blind Channel Estimation for OFDM Systems
Zhigang CHEN Taiyi ZHANG Yatong ZHOU Feng LIU
Publication
IEICE TRANSACTIONS on Communications
Vol.E89-B
No.5
pp.1705-1708 Publication Date: 2006/05/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.5.1705 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: constant modulus, blind channel estimation, orthogonal frequency division multiplexing (OFDM),
Full Text: PDF(246.6KB)>>
Summary:
A novel blind channel estimation scheme is proposed for OFDM systems employing PSK modulation. This scheme minimizes the number of possible channels by exploiting the constant modulus property, chooses a best fit over the possible channels by exploiting the finite alphabet property of information signals, and achieves competitive performance with low computational complexity. Results comparing the new scheme with the finite-alphabet based channel estimation are presented.
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