Recovery escalation with load balancing and backup resources sharing in survivable WDM optical networks

Recovery escalation with load balancing and backup resources sharing in survivable WDM optical... In this paper, we propose a new survivable algorithm, called Enhanced Shared-Path Protection (ESPP), to tolerate multi-link failures in WDM optical networks. In ESPP, we consider the load balancing method to reduce the blocking probability for computing the primary paths, and we also use the idea of backup resources sharing to save backup resources for computing the backup paths. In order to tolerate multi-link failures, we perform the recovery escalation mechanism to establish new routes for carrying the traffic affected by the failures. Simulation results show that, compared with the conventional algorithm, ESPP has better resource utilization ratio, lower blocking probability, and higher protection ability. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photonic Network Communications Springer Journals

Recovery escalation with load balancing and backup resources sharing in survivable WDM optical networks

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Publisher
Springer US
Copyright
Copyright © 2009 by Springer Science+Business Media, LLC
Subject
Computer Science; Characterization and Evaluation of Materials; Electrical Engineering; Computer Communication Networks
ISSN
1387-974X
eISSN
1572-8188
D.O.I.
10.1007/s11107-009-0201-2
Publisher site
See Article on Publisher Site

Abstract

In this paper, we propose a new survivable algorithm, called Enhanced Shared-Path Protection (ESPP), to tolerate multi-link failures in WDM optical networks. In ESPP, we consider the load balancing method to reduce the blocking probability for computing the primary paths, and we also use the idea of backup resources sharing to save backup resources for computing the backup paths. In order to tolerate multi-link failures, we perform the recovery escalation mechanism to establish new routes for carrying the traffic affected by the failures. Simulation results show that, compared with the conventional algorithm, ESPP has better resource utilization ratio, lower blocking probability, and higher protection ability.

Journal

Photonic Network CommunicationsSpringer Journals

Published: Aug 11, 2009

References

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