Data conflict resolution for layered LDPC decoding algorithm by selective recalculation

Wen Ji; Makoto Hamaminato; Hiroshi Nakayama; Satoshi Goto

doi:10.1109/CISP.2010.5647529

Data conflict resolution for layered LDPC decoding algorithm by selective recalculation

Wen Ji^*, Makoto Hamaminato, Hiroshi Nakayama, Satoshi Goto

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010
Pages	2985-2989
Number of pages	5
Volume	6
DOIs	https://doi.org/10.1109/CISP.2010.5647529
Publication status	Published - 2010
Event	2010 3rd International Congress on Image and Signal Processing, CISP 2010 - Yantai Duration: 2010 Oct 16 → 2010 Oct 18

Other

Other	2010 3rd International Congress on Image and Signal Processing, CISP 2010
City	Yantai
Period	10/10/16 → 10/10/18

Keywords

ISDB-S2
LDPC decoding algorithm

ASJC Scopus subject areas

Computer Vision and Pattern Recognition
Signal Processing

Access to Document

10.1109/CISP.2010.5647529

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, 5647529, pp. 2985-2989, 2010 3rd International Congress on Image and Signal Processing, CISP 2010, Yantai, 10/10/16. https://doi.org/10.1109/CISP.2010.5647529

@inproceedings{d96e4b53793e480b82fb0d7697f595c5,

title = "Data conflict resolution for layered LDPC decoding algorithm by selective recalculation",

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.",

keywords = "ISDB-S2, LDPC decoding algorithm",

author = "Wen Ji and Makoto Hamaminato and Hiroshi Nakayama and Satoshi Goto",

year = "2010",

doi = "10.1109/CISP.2010.5647529",

language = "English",

isbn = "9781424465149",

volume = "6",

pages = "2985--2989",

booktitle = "Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010",

note = "2010 3rd International Congress on Image and Signal Processing, CISP 2010 ; Conference date: 16-10-2010 Through 18-10-2010",

}

TY - GEN

T1 - Data conflict resolution for layered LDPC decoding algorithm by selective recalculation

AU - Ji, Wen

AU - Hamaminato, Makoto

AU - Nakayama, Hiroshi

AU - Goto, Satoshi

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

KW - ISDB-S2

KW - LDPC decoding algorithm

UR - http://www.scopus.com/inward/record.url?scp=78650542338&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650542338&partnerID=8YFLogxK

U2 - 10.1109/CISP.2010.5647529

DO - 10.1109/CISP.2010.5647529

M3 - Conference contribution

AN - SCOPUS:78650542338

SN - 9781424465149

VL - 6

SP - 2985

EP - 2989

BT - Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010

T2 - 2010 3rd International Congress on Image and Signal Processing, CISP 2010

Y2 - 16 October 2010 through 18 October 2010

ER -

Data conflict resolution for layered LDPC decoding algorithm by selective recalculation

Abstract

Other

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this