Performance of concatenated code with LDPC code and RSC code

Satoshi Gounai, Tomoaki Ohtsuki, Toshinobu Kaneko

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

5 Citations (Scopus)

Abstract

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).

Original languageEnglish
Title of host publication2006 IEEE International Conference on Communications, ICC 2006
Pages1195-1199
Number of pages5
DOIs
Publication statusPublished - 2006 Dec 1
Event2006 IEEE International Conference on Communications, ICC 2006 - Istanbul, Turkey
Duration: 2006 Jul 112006 Jul 15

Publication series

NameIEEE International Conference on Communications
Volume3
ISSN (Print)0536-1486

Other

Other2006 IEEE International Conference on Communications, ICC 2006
CountryTurkey
CityIstanbul
Period06/7/1106/7/15

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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  • Cite this

    Gounai, S., Ohtsuki, T., & Kaneko, T. (2006). Performance of concatenated code with LDPC code and RSC code. In 2006 IEEE International Conference on Communications, ICC 2006 (pp. 1195-1199). [4024302] (IEEE International Conference on Communications; Vol. 3). https://doi.org/10.1109/ICC.2006.254910