A coded vsb-qpsk transmission scheme for digital satellite communications in co-channel interference environments

Takatoshi Sugiyama, Shuji Kubota, Masahiro Morikura, Shuzo Kato

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A coded VSB (vestigial side band)-QPSK (quadrature phase-shift keying) transmission scheme is proposed to realize interference-resistant digital satellite communication systems. It uses an interference suppression filter to suppress the interference power in the receiving side. The suppressed power can be assigned to Ihe transmission signals in advance by also using a same characteristic band limitation filter in the transmission side. Moreover, high coding-gain forward error correction (FRC) is employed to improve the degradation due to I and Q channel crosstalk by interference suppression. When a D/IJ (desired and undesired signal power ratio) equals 3 dB and a A///,v (A/: interference frequency offset, fa: one-half the Nyquist bandwidth) equals l.OS, the proposed scheme achieves an Eb/No improvement of 7.3 dB in a CCI (co-channel interference) environment.

Original languageEnglish
Pages (from-to)1174-1181
Number of pages8
JournalIEEE Transactions on Aerospace and Electronic Systems
Volume32
Issue number3
DOIs
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Communication satellites
Interference suppression
Quadrature phase shift keying
Digital communication systems
Forward error correction
Satellite communication systems
Crosstalk
Bandwidth
Degradation

ASJC Scopus subject areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

A coded vsb-qpsk transmission scheme for digital satellite communications in co-channel interference environments. / Sugiyama, Takatoshi; Kubota, Shuji; Morikura, Masahiro; Kato, Shuzo.

In: IEEE Transactions on Aerospace and Electronic Systems, Vol. 32, No. 3, 1996, p. 1174-1181.

Research output: Contribution to journalArticle

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