Joint space-time trellis decoding and channel estimation in correlated fading channels

Nguyen, V.K. and White, L.B. 2004, Joint space-time trellis decoding and channel estimation in correlated fading channels, IEEE Signal processing letters, vol. 11, no. 7, pp. 633-636, doi: 10.1109/LSP.2004.830122.

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Title Joint space-time trellis decoding and channel estimation in correlated fading channels
Author(s) Nguyen, V.K.
White, L.B.
Journal name IEEE Signal processing letters
Volume number 11
Issue number 7
Start page 633
End page 636
Publisher Institute of Electrical and Electronics Engineers, Inc.
Place of publication Piscataway, N.J.
Publication date 2004
ISSN 1070-9908
Keyword(s) diversity
Kalman filtering
multiple transmit and receive antenna
per-survivor processing
space-time trellis codes
Summary This letter addresses the issue of joint space-time trellis decoding and channel estimation in time-varying fading channels that are spatially and temporally correlated. A recursive space-time receiver which incorporates per-survivor processing (PSP) and Kalman filtering into the Viterbi algorithm is proposed. This approach generalizes existing work to the correlated fading channel case. The channel time-evolution is modeled by a multichannel autoregressive process, and a bank of Kalman filters is used to track the channel variations. Computer simulation results show that a performance close to the maximum likelihood receiver with perfect channel state information (CSI) can be obtained. The effects of the spatial correlation on the performance of a receiver that assumes independent fading channels are examined.
Language eng
DOI 10.1109/LSP.2004.830122
Field of Research 100599 Communications Technologies not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2004, IEEE
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Document type: Journal Article
Collection: School of Engineering and Technology
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