Performance of concatenated code with LDPC code and RSC code

Satoshi Gounai, Tomoaki Ohtsuki, Toshinobu Kaneko

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

In this paper, we propose a concatenated code by combining a Recursive Systematic Convolutional (RSC) code with a Low-Density Parity-Check (LDPC) code. The proposed concatenated code is encoded in parallel by an RSC encoder and an LDPC encoder without interleavers between them. When decoding the proposed concatenated code, the information bits are decoded by two decoding algorithms, and soft information is exchanged between the RSC decoder and the LDPC decoder. This allows for the elimination of wrong codewords output by each decoder. The use of an LDPC code allows us to halt the decoding process when the valid codeword is obtained. We evaluate the error rate performance of the proposed concatenated code by computer simulations. We show that the proposed concatenated code does not have a high error floor, and achieves better BLock Error Rate (BLER) performance than either conventional LDPC codes or conventional turbo codes in the high Eb/No region. We also show that since the proposed concatenated code can correct wrong codewords output by each decoder, it achieves better BLER than the regular LDPC code at the same Bit Error Rate (BER).

本文言語English
ホスト出版物のタイトル2006 IEEE International Conference on Communications, ICC 2006
ページ1195-1199
ページ数5
DOI
出版ステータスPublished - 2006 12月 1
イベント2006 IEEE International Conference on Communications, ICC 2006 - Istanbul, Turkey
継続期間: 2006 7月 112006 7月 15

出版物シリーズ

名前IEEE International Conference on Communications
3
ISSN(印刷版)0536-1486

Other

Other2006 IEEE International Conference on Communications, ICC 2006
国/地域Turkey
CityIstanbul
Period06/7/1106/7/15

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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