VLSI-implemented high speed digital burst modem applications for satellite video TDMA and wireless LAN

Yoichi Matsumoto, Kiyoshi Kobayashi, Tetsu Sakata, Kazuhiko Seki, Shuji Kubota, Shuzo Kato

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

Abstract

High speed (60 Mb/s) QPSK/OQPSK burst modem Very Large Scale Integrated Circuits (VLSICs), which are greatly useful for radio units to be compact, economical and maintenance-free, are introduced. These VLSICs enable modems to eliminate the analog devices such as mixers required for baseband modulation and zero-IF conversion in demodulation, an analog voltage controlled oscillator (VCO) for bit timing recovery and a voltage controlled attenuator for automatic gain control (AGC). In addition to the full-digital implementation, the demodulator VLSIC achieves fast carrier-acquisition for burst mode operation by employing a reverse-modulation carrier recovery scheme capable of operating for OQPSK signals, and fast clock-acquisition by using a bit-timing recovery scheme with bit-timing estimation and interpolation coupled with a pulse-shaping filter. Results of experiment on the assumption of a video time division multiple access (TDMA) system show that the developed VLSICs perform well at the high speed (60 Mb/s) and with the short preamble words (80 symbols).

Original languageEnglish
Title of host publicationConference Record - International Conference on Communications
Place of PublicationPiscataway, NJ, United States
PublisherPubl by IEEE
Pages1472-1477
Number of pages6
Volume3
ISBN (Print)0780318269
Publication statusPublished - 1994
Externally publishedYes
EventProceedings of the 1994 IEEE International Conference on Communications - New Orleans, LA, USA
Duration: 1994 May 11994 May 5

Other

OtherProceedings of the 1994 IEEE International Conference on Communications
CityNew Orleans, LA, USA
Period94/5/194/5/5

Fingerprint

Time division multiple access
Modems
Local area networks
Integrated circuits
Satellites
Recovery
Modulation
Pulse shaping
Mixer circuits
Demodulators
Quadrature phase shift keying
Gain control
Variable frequency oscillators
Demodulation
Clocks
Interpolation
Electric potential
Experiments

ASJC Scopus subject areas

  • Engineering(all)
  • Media Technology

Cite this

Matsumoto, Y., Kobayashi, K., Sakata, T., Seki, K., Kubota, S., & Kato, S. (1994). VLSI-implemented high speed digital burst modem applications for satellite video TDMA and wireless LAN. In Conference Record - International Conference on Communications (Vol. 3, pp. 1472-1477). Piscataway, NJ, United States: Publ by IEEE.

VLSI-implemented high speed digital burst modem applications for satellite video TDMA and wireless LAN. / Matsumoto, Yoichi; Kobayashi, Kiyoshi; Sakata, Tetsu; Seki, Kazuhiko; Kubota, Shuji; Kato, Shuzo.

Conference Record - International Conference on Communications. Vol. 3 Piscataway, NJ, United States : Publ by IEEE, 1994. p. 1472-1477.

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

Matsumoto, Y, Kobayashi, K, Sakata, T, Seki, K, Kubota, S & Kato, S 1994, VLSI-implemented high speed digital burst modem applications for satellite video TDMA and wireless LAN. in Conference Record - International Conference on Communications. vol. 3, Publ by IEEE, Piscataway, NJ, United States, pp. 1472-1477, Proceedings of the 1994 IEEE International Conference on Communications, New Orleans, LA, USA, 94/5/1.
Matsumoto Y, Kobayashi K, Sakata T, Seki K, Kubota S, Kato S. VLSI-implemented high speed digital burst modem applications for satellite video TDMA and wireless LAN. In Conference Record - International Conference on Communications. Vol. 3. Piscataway, NJ, United States: Publ by IEEE. 1994. p. 1472-1477
Matsumoto, Yoichi ; Kobayashi, Kiyoshi ; Sakata, Tetsu ; Seki, Kazuhiko ; Kubota, Shuji ; Kato, Shuzo. / VLSI-implemented high speed digital burst modem applications for satellite video TDMA and wireless LAN. Conference Record - International Conference on Communications. Vol. 3 Piscataway, NJ, United States : Publ by IEEE, 1994. pp. 1472-1477
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