A novel trellis coded modulation system without signal point expansion

Masayuki Ariyoshi, Takaya Yamazato, Iwao Sasase, Shinsaku Mori

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトルProceedings of 2nd IEEE International Conference on Universal Personal Communications
ホスト出版物のサブタイトルGateway to the 21st Century, ICUPC 1993
出版社Institute of Electrical and Electronics Engineers Inc.
ページ653-657
ページ数5
ISBN(電子版)0780313968, 9780780313965
DOI
出版ステータスPublished - 1993
イベント2nd IEEE International Conference on Universal Personal Communications: Gateway to the 21st Century, ICUPC 1993 - Ottawa, Canada
継続期間: 1993 10 121993 10 15

出版物シリーズ

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

Conference

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

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 信号処理
  • 器械工学

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