Analysis of the performance of a coherent SAC-OCDMA–OFDM–DWDM system using a flat optical frequency comb generator for multiservice networks

This research proposes the architecture of a SAC-OCDMA–OFDM–DWDM system using flat optical frequency comb generator and coherent communication. Its aim is to create new OCDMA communication that specifically intended for multiservice networks. The suggested architectural design numerically simulated analyzed OptiSystem MATLAB. To quantify performance proposed system, SNR, EVM, BER were used as metrics. Furthermore, comparison between two codes, EDW RD, has been presented. Thus, it revealed RD code better in terms robustness number users than code. Besides, by analyzing several symbol rates comparing pre-FEC threshold, demonstrates its effectiveness against linear nonlinear effects. results also show noise affects signal quality; mathematical analysis allowed us determine impact on potential active users.