Multiple-access technology based on optical code-division multiple access for passive optical networks

Abstract

A new multiple-access technology based on optical code-division multiple access (OCDMA) for passive optical networks (PONs) is presented. The design of the optical line terminator and the optical network unit for the OCDMA PON are studied in detail. Its bit-error-rate performance is studied under consideration of multiple-user interference and various noise contributions. Simulation results indicate that the proposed scheme is feasible and that the novel design can improve the performance of optical access networks.