Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
452592 | Computer Networks | 2008 | 11 Pages |
Abstract
This work proposes two different distributed strategies for provisioning lightpaths in the presence of optical physical-layer impairments in GMPLS networks. The first approach is a more classical one, which introduces new extensions to the OSPF-TE routing protocol. The other approach makes use of an Ant Colony Optimization (ACO) algorithm to adaptively calculate routes in the network by actively monitoring the aggregate optical power of each link.By using an analytical model to incorporate the constraints of the Amplified Spontaneous Emission (ASE) noise of the optical amplifiers into the routing, we demonstrate the effectiveness of our approaches by means of an illustrative numerical example.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Gustavo Sousa Pavani, Luiz Gustavo Zuliani, Helio Waldman, Mauricio Magalhães,