MAP-based channel estimation for MIMO-OFDM over fast Rayleigh fading channels

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This paper presents a channel estimation scheme for multiple-input multiple-output with orthogonal frequency-division multiplexing (MIMO-OFDM) in fast varying Rayleigh channels. To handle rapid variation of channels within a transmission block, we propose a novel maximum a posteriori probability-based channel estimation scheme using pilot symbols. With the estimate of the channel matrix for the current symbol interval, a zero-forcing (ZF) receiver is applied to detect the spatially multiplexed data. In simulation results, the effectiveness of the proposed method is shown, as compared with the polynomial and the perfect channel estimates.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2008-05
Language
English
Article Type
Article
Keywords

INTERCARRIER INTERFERENCE; SYSTEMS

Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.57, pp.1963 - 1968

ISSN
0018-9545
DOI
10.1109/TVT.2007.907315
URI
http://hdl.handle.net/10203/91941
Appears in Collection
EE-Journal Papers(저널논문)
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