Comparative Study of Optical Unipolar Codes for Incoherent DS-OCDMA system
In incoherent Direct Sequence Optical Code Division Multiple Access system (DS-OCDMA), the Multiple Access Interference (MAI) is one of the main limitations. To mitigate the MAI, many types of codes can be used to remove the contributions from users. In this paper, the authors study two types of unipolar codes used in DS-OCDMA system incoherent which are Optical Orthogonal Codes (OOCs) and the Prime Code (PC). They developed the characteristics of these codes i.e. factors correlations, and the theoretical upper bound of the probability of error.