Direct-detection optical asynchronous CDMA systems with double optical hard-limiters: APD noise and thermal noise

研究成果: Paper査読

10 被引用数 (Scopus)

抄録

Performance of optical asynchronous code-division multiple-access (CDMA) systems with double optical hard-limiters is analyzed in the presence of avalanche photodiode (APD) noise and thermal noise. The following effects on the optimal thresholds of double optical hard-limiters and on-off keying (OOK) decoder are clarified: sequence codes, the number of users, the received laser power, and the modulation extinction ratio. The results show that the optical asynchronous CDMA systems with double optical hard-limiters have good performance in the presence of the APD noise and the thermal noise even when the number of simultaneous users is large. Moreover, the optical asynchronous CDMA systems with double optical hard-limiters are shown to be practical in the respect of setting optimal thresholds.

本文言語English
ページ3233-3238
ページ数6
出版ステータスPublished - 1998 12 1
外部発表はい
イベントProceedings of the IEEE GLOBECOM 1998 - The Bridge to the Global Integration - Sydney, NSW, Aust
継続期間: 1998 11 81998 11 12

Other

OtherProceedings of the IEEE GLOBECOM 1998 - The Bridge to the Global Integration
CitySydney, NSW, Aust
Period98/11/898/11/12

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 地球変動および惑星変動

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