Connection set-up and path assignment in wavelength division mul

Details Connection set-up and path assignment in wavelength division mul Connection set-up and path assignment in wavelength division mul

1998-10-12

1999-12-07

Negash, Knife-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359124, H04B 1020

Patent

active

059992883

ABSTRACT:
Techniques for physically implementing fiber ring networks which achieve full mesh connectivity, such networks including a 2-fiber WDM ring network composed of a clockwise ring and counter clockwise ring, and a 4-fiber WDM Self-Healing Ring network. The number of wavelengths required is derived for both odd and even number of nodes on the ring. To physically set-up all required connections in the network, optimal wavelength assignment algorithms are devised so that the wavelength assignment between nodes on the ring is systematic and engenders full mesh connectivity while avoiding any possible violation of the color clash constraint. An illustrative algorithm uses a simple matrix approach for calculating the interconnection arrangement.

REFERENCES:
patent: 5548431 (1996-08-01), Shin et al.
patent: 5745269 (1998-04-01), Chawki et al.
Multiwavelength Survivable Ring Network Architectures, authored by A.F. Elrefaie and published in the Proceedings of the International Conference in Communications (ICC), 1993.

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