Simulation of Wavelength/Time Multiple-Pulses-Per-Row Fiber-Optic CDMA Network

Passive wavelength/time fiber-optic code division multiple access (W/T FO-CDMA) network is a viable option for highspeed access networks. Constructions of 2-D codes, suitable for incoherent W/T FO-CDMA, have been proposed to reduce the time spread of the 1-D sequences. The 2-D constructions can be broadly classified as 1) hybrid codes and 2) matrix codes. In our earlier work, we had proposed a new family of wavelength/time multiple-pulses-per-row (W/TMPR) matrix codes which have good cardinality, spectral efficiency and at the same time have the lowest off-peak autocorrelation and cross-correlation values equal to unity. In this paper, we propose an architecture for a W/T MPR FO-CDMA network designed using the presently available devices and technology. A complete FO-CDMA network of ten users is simulated, for various number of simultaneous users and shown that 0 rarr 1 errors can occur only when the number of interfering users is at least equal to the threshold value.