Quality of service differentiation in multimedia 2D optical CDMA networks

The incoherent Optical Code Division Multiple Access (OCDMA) is studied as a potential asynchronous access technique for multimedia applications. In this paper, we propose to provide multi-service applications with 2D codes based on Optical Orthogonal Code (OOC) namely: Multi-Wavelength Optical Orthogonal Code (MWOOC). The Quality of Service (QoS) differentiation is realized by partitioning a 2D code set into matrices with different weights. We develop the theoretical error probability expression of such system in the noiseless case with a Conventional Correlation Receiver (CCR). This permits evaluating the performance in the case of multimedia application.