Compact, high-speed and high-coding-gain general purpose FEC encoder/decoder-NUFEC CODEC

Shuji Kubota, Shuuzou Kato, Tsunehachi Ishitani, Mitsuyoshi Nagatani

Research output: Contribution to journalConference articlepeer-review

12 Citations (Scopus)


A novel universal forward-error-correction (NUFEC) scheme, comprising direct high-coding-rate convolutional code generators and variable-rate Viterbi decoders, is proposed. To make this NUFEC scheme available in various communication systems, three kinds of CMOS VLSIs have been developed. They can operate up to 25 Mb/s and are easily applicable to various coding-rate convolutional codes. Furthermore, by using these NUFEC VLSIs, a compact, high-speed, and high-coding-gain FEC codec (NUFEC codec) has been developed. Experimental results on the Pe performance of this codec have shown powerful coding gains of 5.5, 4.5, 3.4, and 2.2 dB at Pe = 1 × 10-6 in coding rates of 1/2, 3/4, 7/8, and 15/16, respectively.

Original languageEnglish
Pages (from-to)798-803
Number of pages6
JournalConference Record - International Conference on Communications
Publication statusPublished - 1989 Dec 1
EventIEEE International Conference on Communications - ICC'89 - Boston, MA, USA
Duration: 1989 Jun 111989 Jun 14

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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