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Communication Dans Un Congrès Année : 2004

An iterative phase synchronization scheme for general QAM constellations

Résumé

This paper concerns a new synchronizing scheme designed for block turbo coded system. The phase estimation relies on the feedback of the extrinsic information. A near optimum version of the algorithm based on the block turbo decoder devised by Pyndiah allows easy implementation. We display various results showing that the proposed algorithm is able to track frequency shifts and that it works very well in the case of general Quadrature Amplitude Modulation (QAM) constellations. We also show that this turbo synchronizer works at low Signal to Noise Ratios (SNR) taking completely advantage of the turbo coding possibilities.
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Dates et versions

hal-03764760 , version 1 (30-08-2022)

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Christophe Vanstraceele, Benoît Geller, Jean-Pierre Barbot, Jean-Marc Brossier. An iterative phase synchronization scheme for general QAM constellations. 2004 IEEE International Conference on Communications, Jun 2004, Paris, France. pp.519-522, ⟨10.1109/ICC.2004.1312543⟩. ⟨hal-03764760⟩
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