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Iterative Equalization and TCM Decoding with Refined Channel Value

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3 Author(s)
Pei Xiao ; Univ. of Newcastle Upon Tyne, Newcastle upon Tyne ; Carrasco, R. ; Wassell, I.

In this correspondence, we present a new method for the iterative equalization and decoding of multilevel trellis coded modulation (TCM) signals over frequency selective channels. Results show that the proposed algorithm achieves better performance compared to the previous work on the MMSE filter- based turbo equalization for a non-binary coded modulation scheme. The performance gain is accomplished by utilizing the combined modulation and coding nature of TCM and passing the refined signal obtained from different paths to the TCM decoder as the channel value in addition to the a priori probabilities.

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Wireless Communications, IEEE Transactions on  (Volume:6 ,  Issue: 11 )