Data conflict resolution for layered LDPC decoding algorithm by selective recalculation

Wen Ji, Makoto Hamaminato, Hiroshi Nakayama, Satoshi Goto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Layered LDPC decoding algorithm is known to achieve high Bit Error Rate (BER) performance and high throughput for LDPC decoders. However, for ISDB-S2 (Integrated Services Digital Broadcasting via Satellite - Second Generation) LDPC decoder, applying layered algorithm directly will result in data conflict problem. In this paper, a novel selective recalculation method is proposed to solve the data conflict problem. It determines the inaccurately calculated values based on a recalculation decision rule, and correct them accordingly. By applying this selective recalculation method, the layered algorithm can achieve conflict free BER performance. Simulation results demonstrate that the proposed method can achieve 0.1dB gain for the code with most conflicts in ISDB-S2, under the same BER performance compared to the previous strategy to solve data conflict problem.

Original languageEnglish
Title of host publicationProceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010
Pages2985-2989
Number of pages5
Volume6
DOIs
Publication statusPublished - 2010
Event2010 3rd International Congress on Image and Signal Processing, CISP 2010 - Yantai
Duration: 2010 Oct 162010 Oct 18

Other

Other2010 3rd International Congress on Image and Signal Processing, CISP 2010
CityYantai
Period10/10/1610/10/18

Keywords

  • ISDB-S2
  • LDPC decoding algorithm

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing

Fingerprint Dive into the research topics of 'Data conflict resolution for layered LDPC decoding algorithm by selective recalculation'. Together they form a unique fingerprint.

  • Cite this

    Ji, W., Hamaminato, M., Nakayama, H., & Goto, S. (2010). Data conflict resolution for layered LDPC decoding algorithm by selective recalculation. In Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010 (Vol. 6, pp. 2985-2989). [5647529] https://doi.org/10.1109/CISP.2010.5647529