Direct-detection optical synchronous CDMA systems with double optical hard-limiters using modified prime sequence codes

Tomoaki Ohtsuki, Kazumi Sato, Iwao Sasase, Shinsaku Mori

研究成果: Paper査読

10 被引用数 (Scopus)

抄録

An optical code-division multiple-access (CDMA) system with double optical hard-limiters is proposed where the optical hard-limiters are placed before and after an optical correlator. Moreover, the effect of the optical hard-limiter on the performance of the optical synchronous CDMA systems using modified prime sequence codes is analyzed under the assumption of Poisson shot noise model for the receiver photodetector where the noise due to the detector dark currents exists. We evaluate the performance under average power and bit rate constraints. Our results show that using the single optical hard-limiter slightly degrades the performance of the optical CDMA systems. Moreover, we show that the optical CDMA systems with double optical hard-limiters have better performance than other conventional CDMA systems without and with the optical hard-limiter when the number of simultaneous users is not so large.

本文言語English
ページ2156-2160
ページ数5
出版ステータスPublished - 1995 12 1
イベントProceedings of the 1995 IEEE Global Telecommunications Conference. Part 2 (of 3) - Singapore, Singapore
継続期間: 1995 11 141995 11 16

Other

OtherProceedings of the 1995 IEEE Global Telecommunications Conference. Part 2 (of 3)
CitySingapore, Singapore
Period95/11/1495/11/16

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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