SSMA signal transmission over QPSK modulated signal

M. Morikura, K. Enomoto, Shuji Kubota, S. Kato

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

2 Citations (Scopus)

Abstract

The superposition of a spread-spectrum multiple-access (SSMA) signal transmission over a quadrature phase-shift-keyed (QPSK) modulated channel is proposed to achieve higher transmission efficiency per transponder and to reduce the lower transmitter power of a small earth station. Experimental results show that under the condition of D/U = 20 dB, the required error probability, Pe = 1 × 10-4, of the QPSK channel is achieved with only 1-dB degradation by using a coding rate of 7/8 forward error correction (FEC), and the required Pe of 1 × 10-4 for the SSMA channel is achieved with 7-dB degradation by using a coding rate of = 1/2 FEC. The link budget shows that the proposed scheme makes it possible to use a low-power SSPA to realize small earth stations.

Original languageEnglish
Title of host publicationIEEE Global Telecommunications Conference and Exhibition
Place of PublicationPiscataway, NJ, United States
PublisherPubl by IEEE
Pages751-755
Number of pages5
Volume2
ISBN (Print)0879426322
Publication statusPublished - 1990
Externally publishedYes
EventIEEE Global Telecommunications Conference & Exhibition Part 3 (of 3) - San Diego, CA, USA
Duration: 1990 Dec 21990 Dec 5

Other

OtherIEEE Global Telecommunications Conference & Exhibition Part 3 (of 3)
CitySan Diego, CA, USA
Period90/12/290/12/5

Fingerprint

Forward error correction
Phase shift
Earth (planet)
Degradation
Transponders
Transmitters
Error probability

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Morikura, M., Enomoto, K., Kubota, S., & Kato, S. (1990). SSMA signal transmission over QPSK modulated signal. In IEEE Global Telecommunications Conference and Exhibition (Vol. 2, pp. 751-755). Piscataway, NJ, United States: Publ by IEEE.

SSMA signal transmission over QPSK modulated signal. / Morikura, M.; Enomoto, K.; Kubota, Shuji; Kato, S.

IEEE Global Telecommunications Conference and Exhibition. Vol. 2 Piscataway, NJ, United States : Publ by IEEE, 1990. p. 751-755.

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

Morikura, M, Enomoto, K, Kubota, S & Kato, S 1990, SSMA signal transmission over QPSK modulated signal. in IEEE Global Telecommunications Conference and Exhibition. vol. 2, Publ by IEEE, Piscataway, NJ, United States, pp. 751-755, IEEE Global Telecommunications Conference & Exhibition Part 3 (of 3), San Diego, CA, USA, 90/12/2.
Morikura M, Enomoto K, Kubota S, Kato S. SSMA signal transmission over QPSK modulated signal. In IEEE Global Telecommunications Conference and Exhibition. Vol. 2. Piscataway, NJ, United States: Publ by IEEE. 1990. p. 751-755
Morikura, M. ; Enomoto, K. ; Kubota, Shuji ; Kato, S. / SSMA signal transmission over QPSK modulated signal. IEEE Global Telecommunications Conference and Exhibition. Vol. 2 Piscataway, NJ, United States : Publ by IEEE, 1990. pp. 751-755
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