Impact of Physical Layer Impairments on the All-to-All Broadcast in Wavelength Routed Optical Networks
All-to-all broadcast is to disseminate a unique message from each node to every other node of the network. This paper investigates the impact of some of the physical layer impairments on the optical all-to-all broadcast in linear array, bidirectional ring and hypercube networks. The physical layer impairments include Amplified Spontaneous Emission (ASE) noise, switch induced crosstalk and demux/mux crosstalk. In all networks, the result shows that for shorter light-paths, the ASE noise and demux/mux crosstalk are found to be much less as they traverse through few fiber links. Longer light-paths due to their larger stretch experiences higher accumulated ASE noise and demux/mux crosstalk.