Performance Evaluation of ZCC Spectral Amplitude Coding OCDMA Using Different Photodetectors at 10GB/S

Optical Code Division Multiple Access (OCDMA) has bright future in communication because of its faster speed, efficiency, security and unlimited bandwidth. A Zero Cross-Correlation (ZCC) code is analyze to reduce the impact of system impairment and Multiple Access Interference (MAI) in Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) system. The effective OCDMA system is the choice of efficient address codes with good or almost ZCC properties for encoding the source. This paper focusing on the study of ZCC code design with code most important zero cross-correlation property and analyze its performance compared using different two photo detectors. The result shows that ZCC code gives bit error rate of 10-9 at distance of 60km for 10 number of user and 5 numbers of user with data rate of 10Gbps at 100km respectively with different wavelengths at different windows. It also shows using the ZCC code leads to simplicity in system design, cost effective, reduce the MAI and PIIN noises through the zero cross correlation property. The simulation result analyzed in optisystem 13.0. The result indicates that the established system not only preserves the capability of suppressing MAI, but also improves bit error-rate performance as compared to the conventional coders.