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Optical code division multiple access (OCDMA) systems, intensively investigated these last years, are known to suffer from multiple access interference (MAI). In addition, the photodetection process leads to beatings between the desired user information and the interferer ones, strongly degrading the system performance. To simplify the performance analysis, noise statistic is generally approximated...
In this paper, we evaluate the performances of a Direct-Sequence Optical Code Division Multiple Access (DS- OCDMA) system. We estimate the bit error rate (BER) of the system using Importance Sampling (IS) technique by taking into account multiple access interferences (MAI) and noises from the receiver. Conventional Monte-Carlo method uses a great number of samples to derive BER evaluation but only...
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