The effects of multiple access interference and polarization mode dispersion on the outage probability and blocking probability in optical code paths

Abstract

In this work, we investigate through a formal approach the effects of multiple access interference and polarization mode dispersion on the blocking probability in optical code paths (OCP)s. These paths are determined by the data encoding with non‐coherent codes from code division multiplexing using prime code sequences. We modeled the blocking probability in the OCPs considering the outage probability like a threshold to determine the number of acceptable active OCPs in each wavelength. In this model, new OCPs are granted until the number of active OCPs on the wavelength reaches the blocking threshold; after that, requests are blocked. Results show quantitatively the contribution of multiple access interference effects and polarization mode dispersion constraints on the outage probability and their impact on the blocking probability in the OCPs. Copyright © 2012 John Wiley & Sons, Ltd.

Novel protection strategies for passive optical networks based on ring and bus topologies

“…The summary noise consists of relative intensity noise σ R I N , beat noise σ B N , shot noise σ S N , dark current noise σ D N , thermal noise σ T H and the isolation noise σ L x , which was described earlier for the situation with two active OLT units. The typical noise values for PON networks are specified in , and these were also used in following estimations together with σ L x from previous Figure . Because the proposed ring topology can be designed with various Lx values, the SNR and BER estimations were performed for several different σ L x .…”