Title:
SIGNAL SHAPING DEVICE, SHAPING TERMINATION DEVICE, SIGNAL SHAPING METHOD, AND OPTICAL TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/167920
Kind Code:
A1
Abstract:
A signal shaping device (100) is characterized by comprising: a generation unit (121) that performs a plurality of types of preset processes on blocks in which bit strings of a plurality of systems are cut into preset lengths, and generates a plurality of candidate blocks that are candidates for shaping blocks to be transmitted; a calculation unit (122) that calculates, in candidate block units, the weight of a one-dimensional modulation symbol when a plurality of bits included in a candidate block are converted into the one-dimensional modulation symbol; a selection unit (123) that selects a shaping block from a plurality of candidate blocks on the basis of the weight; an addition unit (124) that adds selection information indicating the selection result to the shaping block; and a symbol mapping unit (130) that converts the plurality of bits included in the shaping block into the one-dimensional modulation symbol and generates a one-dimensional modulation signal.
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Inventors:
BINKAI MASASHI (JP)
YOSHIDA TSUYOSHI (JP)
YOSHIDA TSUYOSHI (JP)
Application Number:
PCT/JP2017/010703
Publication Date:
September 20, 2018
Filing Date:
March 16, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04L27/04; H04L27/02
Foreign References:
| JPS63120527A | 1988-05-24 | |||
| JP2016184946A | 2016-10-20 |
Other References:
JUNHO CHO ET AL.: "Low-Complexity Shaping for Enhanced Nonlinearity Tolerance , ECOC 2016", 42ND EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION, 18 September 2016 (2016-09-18), pages 467 - 469, XP055545123
PATRICK SCHULTE ET AL.: "Constant Composition Distribution Matching", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 62, no. 1, 9 November 2015 (2015-11-09), pages 430 - 434, XP011594649
G. BOCHERER: "Bandwidth Efficient and Rate-Matched Low-Density Parity-Check Coded Modulation", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 63, no. 12, December 2015 (2015-12-01), pages 4651 - 4665, XP011593618, doi:10.1109/TCOMM.2015.2494016
P. SCHULTE: "Constant Composition Distribution Matching", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 62, no. 1, January 2016 (2016-01-01), pages 430 - 434, XP011594649, doi:10.1109/TIT.2015.2499181
F. BUCHALI: "Rate Adaptation and Reach Increase by Probabilistically Shaped 64-QAM:An Experimental Demonstration", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 34, no. 7, April 2016 (2016-04-01), pages 1599 - 1609, XP011609199, doi:10.1109/JLT.2015.2510034
J. CHO: "Low-Complexity Shaping for Enhanced Nonlinearity Tolerance", ECOC2016, September 2016 (2016-09-01), pages 467 - 469, XP055545123
PATRICK SCHULTE ET AL.: "Constant Composition Distribution Matching", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 62, no. 1, 9 November 2015 (2015-11-09), pages 430 - 434, XP011594649
G. BOCHERER: "Bandwidth Efficient and Rate-Matched Low-Density Parity-Check Coded Modulation", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 63, no. 12, December 2015 (2015-12-01), pages 4651 - 4665, XP011593618, doi:10.1109/TCOMM.2015.2494016
P. SCHULTE: "Constant Composition Distribution Matching", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 62, no. 1, January 2016 (2016-01-01), pages 430 - 434, XP011594649, doi:10.1109/TIT.2015.2499181
F. BUCHALI: "Rate Adaptation and Reach Increase by Probabilistically Shaped 64-QAM:An Experimental Demonstration", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 34, no. 7, April 2016 (2016-04-01), pages 1599 - 1609, XP011609199, doi:10.1109/JLT.2015.2510034
J. CHO: "Low-Complexity Shaping for Enhanced Nonlinearity Tolerance", ECOC2016, September 2016 (2016-09-01), pages 467 - 469, XP055545123
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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