PROPOSAL OF UNIVERSAL - CODING - RATE VITERBI DECODER - A NOVEL ENCODING AND DECODING METHOD FOR HIGH - CODING - RATE FEC.

Shuji Kubota, Shuzo Kato, Thunehachi Ishitani, Mitsuyoshi Nagatani

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

A universal-coding-rate (UCR) convolutional encoder and Viterbi decoder are proposed to realize high-coding-gain and high-efficiency forward error correction (FEC). The encoder's generator polynomials are designed to realize high-rate code directly. The Viterbi decoder is composed of a branch metric calculator (ROMs), a speed converter, and a conventional low-rate Viterbi decoder. The method does not require any additional operations such as bit stealing and dummy bit insertion, and it performs the same high-gain coding as the conventional punctured scheme. A prototype encoder and UCR Viterbi decoder show satisfactory experimental performance.

Original languageEnglish
Pages (from-to)863-868
Number of pages6
JournalConference Record - International Conference on Communications
Publication statusPublished - 1987 Dec 1

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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