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

Research output: Contribution to conferencePaper

10 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages3233-3238
Number of pages6
Publication statusPublished - 1998 Dec 1
Externally publishedYes
EventProceedings of the IEEE GLOBECOM 1998 - The Bridge to the Global Integration - Sydney, NSW, Aust
Duration: 1998 Nov 81998 Nov 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

  • Electrical and Electronic Engineering
  • Global and Planetary Change

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