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Blind carrier phase estimation and data detection in turbo coded transmissions | IEEE Conference Publication | IEEE Xplore

Blind carrier phase estimation and data detection in turbo coded transmissions


Abstract:

We present a joint phase estimation and decoding method for convolutional turbo codes in the presence of strong phase noise. In order to overcome the problem of phase amb...Show More

Abstract:

We present a joint phase estimation and decoding method for convolutional turbo codes in the presence of strong phase noise. In order to overcome the problem of phase ambiguity and cycle slips, a combined state-space model for the time-varying phase and the component convolutional codes is introduced. The proposed algorithm uses a Gaussian sum approach to approximate the multimodal a posteriori probability density function (pdf) of the phase in a blind context. Monte-Carlo simulations for the turbo code used in the DVB-RCS standard show that the performances of the proposed scheme are close to decoding with perfect knowledge of the phase.
Date of Conference: 06-11 July 2008
Date Added to IEEE Xplore: 08 August 2008
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Conference Location: Toronto, ON, Canada

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