A TDMA satellite communication system for ISDN services

Shuzo Kato, Masahiro Morikura, Shuji Kubota, Hiroshi Kazama, Kiyoshi Enomoto, Masahiro Umehira

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The authors propose a TDMA (time-division multiple-access) satellite communication system suitable for both basic and primary ISDN services in addition to B-channel transmission lines among ISDN switches. To provide these service economically and efficiently, the proposed system uses an offset quadrature phase-shift keying (QPSK) burst modem coupled with high-coding gain and rate-forward-error correction, demand assignment technology for each data burst, and a transmission and reception transponder (carrier) hopping scheme. To realize cost-effective transmission and subscriber lines and to increase the reliability of TDMA terminals, major functions of TDMA terminals have been implemented in large-scale integrated circuits (LSICs), monolithic ICs (MICs), and hybrid ICs (HICs). The experimental results show narrow spectrum transmission with little bit error probability degradation for the offset QPSK burst modem and perfect operation of demand assignment and carrier hopping capability of the system.

Original languageEnglish
Pages (from-to)456-464
Number of pages9
JournalIEEE Journal on Selected Areas in Communications
Issue number2
Publication statusPublished - 1992 Feb

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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