Title:
ERROR CORRECTION DEVICE AND OPTICAL TRANSMISSION/RECEPTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/102621
Kind Code:
A1
Abstract:
The optical transmission/reception device is provided with: an error correction coding unit 23 for coding a transmitting string using LDPC codes of one type; and an error correction decoding unit 36 for decoding a received sequence which was coded using the LDPC codes. The error correction decoding unit 36 decodes the received signal sequence on the basis of parity-check matrices of LDPC convolutional codes. This decoding process is a windowed decoding process involving the use of a window spanning one or more small parity-check matrices. The window size of the window and the decoding iterations are configured to be changeable, and the window size and the decoding iterations are input from a control circuit connected to the error correction decoding unit.
Inventors:
KUBO KAZUO (JP)
Application Number:
PCT/JP2017/042428
Publication Date:
May 31, 2019
Filing Date:
November 27, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03M13/19; H03M13/23
Foreign References:
| JP2013198017A | 2013-09-30 | |||
| JP2013504253A | 2013-02-04 | |||
| JP2004023691A | 2004-01-22 |
Other References:
S. KUDEKART. RICHARDSONR. L. URBANKE: "Threshold Saturation via Spatial Coupling: Why Convolutional LDPC Ensembles Perform So Well over the BEC", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 57, no. 2, February 2011 (2011-02-01), pages 803 - 834
A. R. IYENGARP. H. SIEGELR. L. URBANKEJ. K. WOLF: "Windowed Decoding of Spatially Coupled Codes", PROCEEDINGS 2011 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT, August 2011 (2011-08-01), pages 2552 - 2556
H. IMAIS. HIRAKAWA: "A New Multilevel Coding Method Using Error-Correcting Codes", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. IT-23, no. 3, May 1977 (1977-05-01), pages 371 - 377
See also references of EP 3700094A4
A. R. IYENGARP. H. SIEGELR. L. URBANKEJ. K. WOLF: "Windowed Decoding of Spatially Coupled Codes", PROCEEDINGS 2011 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT, August 2011 (2011-08-01), pages 2552 - 2556
H. IMAIS. HIRAKAWA: "A New Multilevel Coding Method Using Error-Correcting Codes", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. IT-23, no. 3, May 1977 (1977-05-01), pages 371 - 377
See also references of EP 3700094A4
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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