Immunity of the R3T Random Access Optical CDMA Protocol against Receiver Noise

The effect of both shot noise and thermal noise on the performance of the optical code-division multiple- access (OCDMA) round robin receiver/transmitter (R
³
T) protocol is examined. Several performance measures, namely, the steady state system throughput, the protocol efficiency, and the average packet delay are evaluated. Our results reveal that the R
³
T is immune against both thermal and shot noise. We found out that there are optimum values for the laser power to compensate for this degradation.