Name
Abstract | ||
|---|---|---|
In all-optical WDM networks, signals propagate over very long physical lightpaths without regeneration. Signals are subject to well-known physical impairments which are sensitive not only to the network topology, such as amplifier noise, but also to new impairments which vary with the network utilization. These impairments are interchannel crosstalk due to nonlinear signals combinations within the fiber links, and node crosstalk due to optical leaks inside the network nodes. As a result, calls in all-optical networks may be rejected because they do not meet a minimal QoS constraint which has to be enforced to ensure nearly error-free network operation. Recently, Routing and Wavelength Assignment (RWA) algorithms that account for network physical impairments have been developed. Some of them use FEC coding to trade, when needed, bandwidth utilization against higher QoS. RWA with optional FEC coding has been studied only for noise-limited networks. We show how RWA algorithms with optional FEC coding can be employed to reduce both static and dynamic physical impairments. We show that RWA algorithms with optional FEC coding are efficient to decrease call blocking probabilities, and also improve resource allocation fairness, in the context of a realistic continental-sized network. |
Year | Venue | Keywords |
|---|---|---|
2006 | PROCEEDINGS OF THE SIXTH IASTED INTERNATIONAL MULTI-CONFERENCE ON WIRELESS AND OPTICAL COMMUNICATIONS | optical network multi-layer design, routing and wavelength assignment, interchannel crosstalk, node crosstalk, QoS, fairness |
Field | DocType | Citations |
Wavelength-division multiplexing,Crosstalk,Computer science,Computer network,Coding (social sciences) | Conference | 1 |
PageRank | References | Authors |
0.40 | 5 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yvan Pointurier | 1 | 135 | 20.65 |
| Maïté Brandt-pearce | 2 | 597 | 68.43 |
| Bo Xu | 3 | 9 | 4.21 |