Spectral-Temporal Optical Code Division Multiple Access Code for High Capacity Passive Optical Networks

Abstract

O ptical CDMA systems have caught significant attention since their inception owing to use of asynchronous transmission, unique coding schemes, and relatively simple network architecture.OCDMA based systems are readily adapted in passive optical networks (PONs) for the provision of high bandwidth with relatively low cost of deployment.However, such schemes limit system's output and its performance due to one dimensional (1D) nature of this coding schemes.Such factor introduces several problems in OCDMA based PONs that limits the addition of new subscribers communicating at large data rates suggested by (Ghafouri-Shiraz and Karbassian, 2012;