Two approaches to multilevel QAM coding

A. R. Oka; S. Bross; S. Shamai

doi:10.1109/isit.1998.708809

Two approaches to multilevel QAM coding

A. R. Oka
, S. Bross
, S. Shamai

Technion-Israel Institute of Technology
Orckit Communications Ltd.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A systematic way of designing high gain moderate latency multilevel trellis coded modulation is developed. Various multi-level geometrically uniform partitions of 2D-QAM are investigated such that they lead to the 8-way 'Ungerboek' partition which allows up to 6 dB gain over uncoded modulation. The mod-lambda multilevel capacities determine the possible allocation of rates in the different levels, and hence decide overall latency. Group coding techniques are used to design the component codes, and simulations and bounds are provided for the proposed multilevel schemes. The question: «how much complexity is required to achieve an effective coding gain (excluding shaping) of 6.0 dB at BER 10^-7...10^-10 with moderate latency and practical multistage decoding?» is addressed.

Original language	English
Title of host publication	Proceedings - 1998 IEEE International Symposium on Information Theory, ISIT 1998
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	208
Number of pages	1
ISBN (Print)	0780350006, 9780780350007
DOIs	https://doi.org/10.1109/isit.1998.708809
State	Published - 1998
Externally published	Yes
Event	1998 IEEE International Symposium on Information Theory, ISIT 1998 - Cambridge, MA, United States Duration: 16 Aug 1998 → 21 Aug 1998

Publication series

Name	IEEE International Symposium on Information Theory - Proceedings
ISSN (Print)	2157-8095

Conference

Conference	1998 IEEE International Symposium on Information Theory, ISIT 1998
Country/Territory	United States
City	Cambridge, MA
Period	16/08/98 → 21/08/98

Bibliographical note

Funding Information:
Acknowledgements. This study was supported in part by a grant from the United States-Israel Binational Science Foundation. The authors wish to thank Ms. R. Sahar for her skilled technical assistance.

Funding

Acknowledgements. This study was supported in part by a grant from the United States-Israel Binational Science Foundation. The authors wish to thank Ms. R. Sahar for her skilled technical assistance.

Funders
United States-Israel Binational Science Foundation

Access to Document

10.1109/isit.1998.708809

Cite this

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note = "Funding Information: Acknowledgements. This study was supported in part by a grant from the United States-Israel Binational Science Foundation. The authors wish to thank Ms. R. Sahar for her skilled technical assistance.; 1998 IEEE International Symposium on Information Theory, ISIT 1998 ; Conference date: 16-08-1998 Through 21-08-1998",

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Oka, AR, Bross, S & Shamai, S 1998, Two approaches to multilevel QAM coding. in Proceedings - 1998 IEEE International Symposium on Information Theory, ISIT 1998., 708809, IEEE International Symposium on Information Theory - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 208, 1998 IEEE International Symposium on Information Theory, ISIT 1998, Cambridge, MA, United States, 16/08/98. https://doi.org/10.1109/isit.1998.708809

Two approaches to multilevel QAM coding. / Oka, A. R.; Bross, S.; Shamai, S.
Proceedings - 1998 IEEE International Symposium on Information Theory, ISIT 1998. Institute of Electrical and Electronics Engineers Inc., 1998. p. 208 708809 (IEEE International Symposium on Information Theory - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Two approaches to multilevel QAM coding

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