Paper Title
Performance Evaluation of OCDMA Over Free Space Nonlinear Channel

In this research, we numerically simulate the wireless OCDMA system to measure the system performance for non-coherent optical code with seven simultaneous users. The influence of atmospheric wireless channel effect on bit rate and channel length was analyzed. In our analysis, the noise cancellation was performed by digital signal processing algorithms theoptimal channel length according to input and received optical power 1100m, system performance was tested using BER and eye diagram standards. Keywords - Optical CDMA, Optical wireless system, free space channel