Optical Network Performance in Presence of Physical Layer Impairments

This book highlights the significance of equipping the routing phase of a Physical Layer Impairment-Routing and Wavelength Assignment algorithm with signal quality and delay awareness. It is shown that that for Optical Electrical Optical conversion generated time delay minimization, using all-optical wavelength converters for only wavelength contention resolution is a judicious choice rather than resorting to regenerators and further, there exists a definitive trade-off between the overall network cost and maximum tolerable delay.