Performance analysis of multi-weight 2D-OCDMA TEDW

Two-dimensional (2-D) wavelength-spreading time-hopping for optical code-division multiple-access (OCDMA) systems have attracted much attention as a potential technique for enhancing the performance of optical access networks and propose a robust solution for the last mile networks. OCDMA itself is attractive because of its beneficial features which includes asynchronous multiple access, robustness against interference, high security and flexible bandwidth assignment. In this paper, we present the simulative study and comparison of a multi dimension 2D-OCDMA network utilizing Enhanced Double Weight (EDW) code which has enhanced properties such as a cross-correlation value of 1 and has a simple encoder/decoder design. The output BER was satisfactory at above 10^-9 at the data rate of 1.25Gbps for various distances with the ITU-T G.652 standard single mode optical fiber.