Trellis-coded 16-QAM with overlapped signal sets for satellite communication systems

Isabelle Urbin, Shuji Kubota, Shuzo Kato

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

1 Citation (Scopus)


This paper presents a coding technique which achieves, up to a frequency utilization efficiency of 2.6 b/s/Hz, better bit error rate performances than conventional 16-QAM and 8-PSK in nonlinear channels and Adjacent Channel Interferences (ACI) environment. The proposed scheme, 16-OSTQAM, is based on trellis-coding techniques but employs overlapped signal sets to compensate for the distortion and the increased required power of the 16-QAM signal. Computer simulation is carried out to clarify the performances of 16-OSTQAM compared with those of conventional 16-QAM and 8-PSK, on the same bandwidth efficiency basis and for the same amounts of nonlinearities and interferences. The proposed scheme achieves 6 dB improvement in Eb/No, up to 2.6 b/s/Hz, compared with 16-QAM, and more than 6 dB, over 2.52 b/s/Hz, compared with 8-PSK.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
PublisherPubl by IEEE
Number of pages7
ISBN (Print)0780309510
Publication statusPublished - 1993 Jan 1
Externally publishedYes
EventProceedings of the IEEE International Conference on Communications '93 - Geneva, Switz
Duration: 1993 May 231993 May 26

Publication series

NameIEEE International Conference on Communications


OtherProceedings of the IEEE International Conference on Communications '93
CityGeneva, Switz

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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