Coded continuous phase modulation combined with nonuniform mapping and multi‐h scheme

Toshiyuki Itoh, Iwao Sasase, Shinsaku Mori

Research output: Contribution to journalArticle

Abstract

The convolutional coding combined with continuous phase modulation (CPM) has been shown as a good tradeoff between coding and bandwidth. This paper proposes the coded CPM with the nonuniform signal constellation and the multi‐h scheme to achieve further coding gains over the conventional uniform mapping single‐h coded CPM. Using the minimum Euclidean distance, the number of merge events up to a certain depth in the state trellis and the average bandwidth as estimated criteria, the performance of the non‐uniform multi‐h coded CPM is analyzed. It is found that the nonuniform multi‐h coded CPM achieves larger Euclidean distance and diminishes the number of merge events without expanding the bandwidth.

Original languageEnglish
Pages (from-to)63-72
Number of pages10
JournalElectronics and Communications in Japan (Part I: Communications)
Volume73
Issue number6
DOIs
Publication statusPublished - 1990 Jun

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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