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Performance analysis of asynchronous optical code division multiple access with spectral-amplitudecoding

Sedaghat, M. A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1049/iet-com.2012.0310
  3. Abstract:
  4. In this study, the performance of a spectral-amplitude-coding optical code division multiple access (SAC-OCDMA) system in the asynchronous regime is evaluated using a Gaussian approximation of the decision variable for codes with fixed cross-correlation used in SAC-OCDMA systems. The authors consider the effect of phase-induced intensity noise (PIIN), thermal noise and shot noise. Moreover, the validity of the Gaussian approximation is confirmed by a Kolmogorov-Smirnov fitness test. For sake of comparison, the bit error rate (BER) of the asynchronous SAC-OCDMA system is also plotted numerically in comparison with the BER of the synchronous SAC-OCDMA. They show that a SAC-OCDMA system without any time management for the users, that is, the asynchronous regime, has a better performance than the synchronous SAC-OCDMA when PIIN effect exists
  5. Keywords:
  6. Optical communication ; Better performance ; Cross correlations ; Decision variables ; Gaussian approximations ; Kolmogorov-Smirnov ; Optical code division multiple access ; Performance analysis ; Phase-induced intensity noise ; Code division multiple access
  7. Source: IET Communications ; Vol. 8, Issue. 6 , April , 2014 , pp. 956-963 ; ISSN: 17518628
  8. URL: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6798011&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel7%2F4105970%2F6797989%2F06798011.pdf%3Farnumber%3D6798011