Abstract:

A new state-dependent blocking probabilities analysis model is proposed for multi-fiber WDM (wavelength division multiplexing) network. By processing the idle states of each wavelength of the independent links as the markov chain, this model can be used to analyze the multi-fiber routing network with First-fit wavelength assignment (FF-WA) and fix routing algorithms, and break the limitation of the previous models which can only handle the random wavelength assignment algorithm. Numerical analysis proves that the new model can estimate the blocking probabilities in wavelength-routed WDM network more accurately, and capture the utilization changes of different wavelength.

Key words: blocking probability, mulitifiber Wavelength Division Multiplexing optical networks, wavelength assignment