A novel trellis coded modulation system without signal point expansion

Masayuki Ariyoshi, Takaya Yamazato, Iwao Sasase, Shinsaku Mori

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

2 Citations (Scopus)

Abstract

In conventional trellis coded modulation (TCM), the number of signal points in the constellation is doubled by additional redundant bits. This paper proposes a novel TCM system without signal point expansion which employs 2m kinds of trellis paths depending upon m encoder input bits, instead of 2/sup m+1/ kinds of paths of conventional TCM. The number of cosets assigned to trellis paths and total number of signal points can be reduced to half of those in conventional TCM. Therefore, it is possible to implement a coded modulation systems without signal point expansion by additional redundant bits, and the effective bit rate becomes unity. This scheme achieves a considerable coding gain in comparison to the traditional uncoded systems, and to the conventional TCM system. Furthermore, as the proposed scheme needs only half the signal points of conventional TCM, the average power is lower and it is less sensitive to the carrier phase offset.

Original languageEnglish
Title of host publicationProceedings of 2nd IEEE International Conference on Universal Personal Communications
Subtitle of host publicationGateway to the 21st Century, ICUPC 1993
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages653-657
Number of pages5
ISBN (Electronic)0780313968, 9780780313965
DOIs
Publication statusPublished - 1993 Jan 1
Event2nd IEEE International Conference on Universal Personal Communications: Gateway to the 21st Century, ICUPC 1993 - Ottawa, Canada
Duration: 1993 Oct 121993 Oct 15

Publication series

NameProceedings of 2nd IEEE International Conference on Universal Personal Communications: Gateway to the 21st Century, ICUPC 1993
Volume2

Conference

Conference2nd IEEE International Conference on Universal Personal Communications: Gateway to the 21st Century, ICUPC 1993
CountryCanada
CityOttawa
Period93/10/1293/10/15

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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  • Cite this

    Ariyoshi, M., Yamazato, T., Sasase, I., & Mori, S. (1993). A novel trellis coded modulation system without signal point expansion. In Proceedings of 2nd IEEE International Conference on Universal Personal Communications: Gateway to the 21st Century, ICUPC 1993 (pp. 653-657). [528462] (Proceedings of 2nd IEEE International Conference on Universal Personal Communications: Gateway to the 21st Century, ICUPC 1993; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICUPC.1993.528462