| 講演名 | 2011-12-12 A Computationally Efficient Early Stopping Method for DVB-S2 LDPC Decoder(JC-SAT 2011) , |
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| PDFダウンロードページ |  PDFダウンロードページへ |
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| 抄録(英) | Satellite communication requires powerful forward error correction scheme because of long transmission delay. Thus, the low density parity check (LDPC) code is adopted for the forward error correction code in DVB-S2 standard. Because decoding process of LDPC code is based on the iterative soft decoding, it is critical fact for decoder to reduce the average number of iterations. Therefore we briefly introduce a conventional hard decision based early stopping method. We also introduce that the conventional early stopping method is combined with a horizontal shuffling scheduling (HSS) algorithm which is one of layered decoding scheme. However, the computational complexity of this conventional hard decision based method is still high, because this computes the early stopping criterion at the end of iterations. In this paper, we propose a computationally efficient early stopping method which computes the early stopping criterion at specific iterations. The simulation results show that the proposed early stopping method reduces the number of iterations of LDPC decoding algorithm. Furthermore, the computational complexity of proposed early stopping method is fewer than those of the conventional HD based early stopping method. |
| キーワード(和) | |
| キーワード(英) | Early stooping / LDPC / Layered Decoding / Horizontal shuffling scheduling / HSS / DVB-S2 / Satellite / Forward Error Correction code |
| 資料番号 | SAT2011-40 |
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| 研究会情報 | |
| 研究会 | SAT |
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| 開催期間 | 2011/12/5(から1日開催) |
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| 申込み研究会 | Satellite Telecommunications (SAT) |
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| 本文の言語 | ENG |
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| タイトル（英） | A Computationally Efficient Early Stopping Method for DVB-S2 LDPC Decoder(JC-SAT 2011) |
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| キーワード(1)（和/英） | / Early stooping |
| 第 1 著者 氏名（和/英） | / Gwan Seok Jang |
| 第 1 著者 所属（和/英） | Electronic and Telecommunication Research Institute, Department of Satellite & Wireless Convergence, University of Science and Technology |
| 発表年月日 | 2011-12-12 |
| 資料番号 | SAT2011-40 |
| 巻番号（vol） | vol.111 |
| 号番号（no） | 336 |
| ページ範囲 | pp.- |
| ページ数 | 6 |
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