| 摘要 |
<p>A method of assigning a signal (10) to a central wavelength (5) through a path crossing successive links (1, 2, 3, 4) in a transparent optical network comprising nodes connected by a plurality of links, each link (1, 2, 3, 4) using an optical grid with a constant channel spacing, comprising the steps of:
- determining, through the network, the widest channel spaced grid (4) and the narrowest channel spaced grid (1);
- parting, at each link (1, 2, 3, 4) through said path, the total optical bandwidth into central wavelengths spaced and aligned with the narrowest channel spaced grid (1);
- weighting, at each link (1, 2, 3, 4) through said path, each central wavelength with a weight indicative of the occupation of said central wavelength at said link and of the alignment of said central wavelength with said widest channel spaced grid (4);
- combining, the weights encountered through said path for each central wavelength; and
- assigning said signal to be routed to a central wavelength with an optimal combined weight.</p> |
