Bit-interleaved coded modulation with iterative decoding using softfeedback |
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Authors: | Xiaogdong Li Ritcey J.A. |
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Affiliation: | Dept. of Electr. Eng., Washington Univ., Seattle, WA; |
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Abstract: | A new iterative decoding (ID) scheme is suggested for bit-interleaved coded modulation (BICM). The bit-metric generation at the demodulator is optimised with the soft-output feedback from the convolutional decoder. Computer simulation results indicate that BICM-ID, with a few iterations, significantly outperforms conventional trellis coded modulation and is therefore another promising technique to achieve large coding gain without bandwidth expansion |
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