Cherifi, A., B. Yagoubi, B.S. Bouazza, and A.O. Dahman. 2016. “New Method for the Construction of Optical Zero Cross Correlation Code Using Block Matrices in OCDMA-OFDM Systemn Code Using Blocks Matrices in OCDMA-OFDM System”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 8 (1):33-39. https://jtec.utem.edu.my/jtec/article/view/656.