A systematic approach to detecting OFDM signals in a fading channel

We derive the maximum a posteriori probability (MAP) receiver for orthogonal frequency-division multiplexed signals in a fading channel. As the complexity of the MAP receiver is high, we obtain a low-complexity, suboptimal receiver and evaluate its performance.

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Bibliographic Details
Published in:IEEE transactions on communications 2000-05, Vol.48 (5), p.725-728
Main Authors: Bulumulla, S.B., Kassam, S.A., Venkatesh, S.S.
Format: Article
Language:English
Subjects:
Bandwidth
Channels
Complexity
Covariance matrix
Delay
Fading
Frequency division multiplexing
Frequency estimation
Kalman filters
OFDM
Orthogonal Frequency Division Multiplexing
Performance evaluation
Rayleigh channels
Receivers
Signal detection
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Description
Summary:We derive the maximum a posteriori probability (MAP) receiver for orthogonal frequency-division multiplexed signals in a fading channel. As the complexity of the MAP receiver is high, we obtain a low-complexity, suboptimal receiver and evaluate its performance.
ISSN:0090-6778
1558-0857
DOI:10.1109/26.843179