π/4-shift QPSK coherent detection demodulator for TDMA/TDD systems

Y. Matsumoto, S. Kubota, M. Morikura, S. Kato

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper proposes a π/4-shift QPSK coherent detection demodulator for microcellular TDMA/TDD systems. The demodulator employs a reverse-modulation type carrier recovery circuit with a -π/4 signal phase rotator for coherent detection, and an initial clock recovery circuit for fast synchronization of transmitted bursts. Computer simulation results show that coherent detection with the proposed carrier recovery circuit reduces the irreducible frame error rate by 50% compared with differential detection, and achieves a 4 dB improvement at a frame error rate of 10-2 with transmission diversity in the fading channel typical of personal communication. In addition, the proposed initial clock recovery circuit is useful to avoid hangup and to shorten the preamble bits needed for clock recovery.

本文言語English
ホスト出版物のタイトルIEEE Vehicular Technology Conference
出版社Publ by IEEE
ページ396-399
ページ数4
ISBN(印刷版)078031266X
出版ステータスPublished - 1993 1 1
外部発表はい
イベントProceedings of the 43rd IEEE Vehicular Technology Conference - Secaucus, NJ, USA
継続期間: 1993 5 181993 5 20

出版物シリーズ

名前IEEE Vehicular Technology Conference
ISSN(印刷版)0740-0551

Other

OtherProceedings of the 43rd IEEE Vehicular Technology Conference
CitySecaucus, NJ, USA
Period93/5/1893/5/20

ASJC Scopus subject areas

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

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