Noise suppression system of OCDMA with spectral/spatial 2D hybrid code Rima Matem, S. A. Aljunid, M. N Junita, C. B.M Rashidi and Israa Shihab Aqrab EPJ Web Conf., 162 (2017) 01025 Published online: 22 November 2017 DOI: 10.1051/epjconf/201716201025