Improved ADPCM voice transmission for TDMA-TDD systems

Osamu Nakamura, Akira Dobashi, Kazuhiko Seki, Shuji Kubota, Shuzo Kato

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

4 Citations (Scopus)


This paper proposes novel techniques to improve the ADPCM voice signal transmission quality of TDMA-TDD systems in fading environments. The proposed scheme employs an improved error detection technique with a PCM signal differential detection and a cyclic redundancy code. Erroneous PCM bursts are replaced by error-free bursts. Hardware simulation results show that these techniques significantly improve ADPCM voice transmission quality in the fading environments typical of personal communication systems. The developed techniques enhance ADPCM voice transmission quality for cost -effective personal communication systems.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
PublisherPubl by IEEE
Number of pages4
ISBN (Print)078031266X
Publication statusPublished - 1993
Externally publishedYes
EventProceedings of the 43rd IEEE Vehicular Technology Conference - Secaucus, NJ, USA
Duration: 1993 May 181993 May 20

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)0740-0551


OtherProceedings of the 43rd IEEE Vehicular Technology Conference
CitySecaucus, NJ, USA

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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