Trellis coded modulation using partially overlapped signal sets of non-equiprobable signaling

M. Ariyoshi, Iwao Sasase

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

Abstract

In conventional trellis coded modulation (TCM), a higher-ary modulation scheme combining with a convolutional code is employed not to expand the transmitted bandwidth. This forces the system to be attended by signal constellation expansion and increasing the average signal power. As solutions to avoid signal constellation expansion, TCM systems using totally overlapped signal sets (TO-TCM and RU-TCM) were proposed. These schemes can realize a coded modulation system with no signal constellation expansion and achieve more coding gain than conventional TCM. However, a problem that the systems with totally overlapped signal sets might be catastrophic has been remained. The authors propose a novel TCM system using partially overlapped signal sets of nonequiprobable signaling (PO-TCM-NE). This scheme employs the partially overlapped signal constellation to control increasing signal points, and to avoid catastrophic error propagation. The nonequiprobable signaling is employed to reduce average signal power. Coding gain of proposed PO-TCM-NE is considerably improved; in consequence the average signal power is reduced much lower than other TCM systems with equiprobable signaling.

Original languageEnglish
Title of host publicationWireless Networks - Catching the Mobile Future
Subtitle of host publication5th IEEE Intemational Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 1994 - Proceedings
EditorsRamjee Prasad, Jens C. Arnbak, Jos H. Weber
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages558-562
Number of pages5
ISBN (Electronic)9051991932
DOIs
Publication statusPublished - 1994 Jan 1
Event5th IEEE Intemational Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 1994 - The Hague, Netherlands
Duration: 1994 Sep 181994 Sep 22

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2

Conference

Conference5th IEEE Intemational Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 1994
CountryNetherlands
CityThe Hague
Period94/9/1894/9/22

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Ariyoshi, M., & Sasase, I. (1994). Trellis coded modulation using partially overlapped signal sets of non-equiprobable signaling. In R. Prasad, J. C. Arnbak, & J. H. Weber (Eds.), Wireless Networks - Catching the Mobile Future: 5th IEEE Intemational Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 1994 - Proceedings (pp. 558-562). [529152] (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WNCMF.1994.529152