Abstract
This paper proposes very simple bit-interleaved coded modulation with iterative detection (BICM-ID) as a spectrally efficient signal transmission scheme, where irregular repetition code and extended mapping with rate-1 doped accumulator (ACC) are combined to achieve a clear turbo-cliff. Doped ACC is used for close matching of the demapper and decoder’s extrinsic information transfer curves. Although the proposed BICM-ID system is very simple, it can achieve excellent performances and completely eliminate bit-error-rate floor. An exemplifying result for extended non-Gray mapped 4-quadrature amplitude modulation symbol shows that with 0.916 bits/channel use, turbo-cliff happens at 1.27 dB away from the Shannon limit.
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Acknowledgments
We would like to acknowledge Dan Zhao for developing the simulation software of the demapper part.
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This research is supported in part by the Japan Society for the Promotion of Science (JSPS) Grant under Scientific Research (C) No. 22560367 and (B) No. 23360170.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Anwar, K., Matsumoto, T. Very Simple BICM-ID Using Repetition Code and Extended Mapping with Doped Accumulator. Wireless Pers Commun 67, 573–584 (2012). https://doi.org/10.1007/s11277-011-0397-1
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DOI: https://doi.org/10.1007/s11277-011-0397-1