发明名称 |
Method and apparatus for path selection and wavelength assignment in an optical network |
摘要 |
A method and apparatus for determining a shortest path between a source node and a destination node in an optical network of nodes interconnected with optical transmission links is disclosed. A wavelength graph is used to represent an optical network as a set of electronic nodes and optical channel nodes corresponding to the network nodes with a set of internal links and optical channel links. The electronic node represents the electronic switching fabric that interconnects OEO equipment within a physical node. A single-source shortest path algorithm (e.g., Dijkstra's algorithm) is applied to the wavelength graph to determine a shortest path. The transformation of the network representation to include the electronic node greatly reduces the number of links in the wavelength graph and significantly increases the computational efficiency.
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申请公布号 |
US7020394(B2) |
申请公布日期 |
2006.03.28 |
申请号 |
US20010932850 |
申请日期 |
2001.08.17 |
申请人 |
QUANTUM BRIDGE COMMUNICATIONS, INC. |
发明人 |
ZHANG HONGBIAO;EFFENBERGER FRANK J.;LEE KYOO J. |
分类号 |
H04B10/08;H04J14/02;H04L12/56 |
主分类号 |
H04B10/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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