DVB-T2 LDPC decoder with perfect conflict resolution

Xiongxin Zhao; Zhixiang Chen; Xiao Peng; Dajiang Zhou; Satoshi Goto

doi:10.1109/VLSI-DAT.2012.6212664

DVB-T2 LDPC decoder with perfect conflict resolution

Xiongxin Zhao^*, Zhixiang Chen, Xiao Peng, Dajiang Zhou, Satoshi Goto

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

In this paper we focus on the resolution of the message updating conflict problem in layered algorithm for DVB-T2 LDPC decoders. Unlike the previous resolutions, we directly implement the layered algorithm without modifying the parity-check matrices (PCM) or the decoding algorithm. DVB-T2 LDPC decoder architecture is also proposed in this paper with two new techniques which guarantee conflict-free layered decoding. The PCM Rearrange technique reduces the number of conflicts and eliminates all of data dependency problems between layers to ensure high pipeline efficiency. The Layer Division technique deals with all remaining conflicts with a well-designed decoding schedule. Experiment results show that compared to state-of-the-art works we achieve a slight error-correcting performance gain for DVB-T2 LDPC codes.

Original language	English
Title of host publication	2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012 - Proceedings of Technical Papers
DOIs	https://doi.org/10.1109/VLSI-DAT.2012.6212664
Publication status	Published - 2012
Event	2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012 - Hsinchu Duration: 2012 Apr 23 → 2012 Apr 25

Other

Other	2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012
City	Hsinchu
Period	12/4/23 → 12/4/25

ASJC Scopus subject areas

Hardware and Architecture

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10.1109/VLSI-DAT.2012.6212664

Cite this

Zhao, X, Chen, Z, Peng, X, Zhou, D & Goto, S 2012, DVB-T2 LDPC decoder with perfect conflict resolution. in 2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012 - Proceedings of Technical Papers., 6212664, 2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012, Hsinchu, 12/4/23. https://doi.org/10.1109/VLSI-DAT.2012.6212664

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title = "DVB-T2 LDPC decoder with perfect conflict resolution",

abstract = "In this paper we focus on the resolution of the message updating conflict problem in layered algorithm for DVB-T2 LDPC decoders. Unlike the previous resolutions, we directly implement the layered algorithm without modifying the parity-check matrices (PCM) or the decoding algorithm. DVB-T2 LDPC decoder architecture is also proposed in this paper with two new techniques which guarantee conflict-free layered decoding. The PCM Rearrange technique reduces the number of conflicts and eliminates all of data dependency problems between layers to ensure high pipeline efficiency. The Layer Division technique deals with all remaining conflicts with a well-designed decoding schedule. Experiment results show that compared to state-of-the-art works we achieve a slight error-correcting performance gain for DVB-T2 LDPC codes.",

author = "Xiongxin Zhao and Zhixiang Chen and Xiao Peng and Dajiang Zhou and Satoshi Goto",

year = "2012",

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language = "English",

isbn = "9781457720819",

booktitle = "2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012 - Proceedings of Technical Papers",

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T1 - DVB-T2 LDPC decoder with perfect conflict resolution

AU - Zhao, Xiongxin

AU - Chen, Zhixiang

AU - Peng, Xiao

AU - Zhou, Dajiang

AU - Goto, Satoshi

PY - 2012

Y1 - 2012

N2 - In this paper we focus on the resolution of the message updating conflict problem in layered algorithm for DVB-T2 LDPC decoders. Unlike the previous resolutions, we directly implement the layered algorithm without modifying the parity-check matrices (PCM) or the decoding algorithm. DVB-T2 LDPC decoder architecture is also proposed in this paper with two new techniques which guarantee conflict-free layered decoding. The PCM Rearrange technique reduces the number of conflicts and eliminates all of data dependency problems between layers to ensure high pipeline efficiency. The Layer Division technique deals with all remaining conflicts with a well-designed decoding schedule. Experiment results show that compared to state-of-the-art works we achieve a slight error-correcting performance gain for DVB-T2 LDPC codes.

AB - In this paper we focus on the resolution of the message updating conflict problem in layered algorithm for DVB-T2 LDPC decoders. Unlike the previous resolutions, we directly implement the layered algorithm without modifying the parity-check matrices (PCM) or the decoding algorithm. DVB-T2 LDPC decoder architecture is also proposed in this paper with two new techniques which guarantee conflict-free layered decoding. The PCM Rearrange technique reduces the number of conflicts and eliminates all of data dependency problems between layers to ensure high pipeline efficiency. The Layer Division technique deals with all remaining conflicts with a well-designed decoding schedule. Experiment results show that compared to state-of-the-art works we achieve a slight error-correcting performance gain for DVB-T2 LDPC codes.

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DO - 10.1109/VLSI-DAT.2012.6212664

M3 - Conference contribution

AN - SCOPUS:84864072654

SN - 9781457720819

BT - 2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012 - Proceedings of Technical Papers

T2 - 2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012

Y2 - 23 April 2012 through 25 April 2012

ER -

DVB-T2 LDPC decoder with perfect conflict resolution

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