Title

Alarm-based routing and path protection in survivable wavelength-routed all-optical mesh networks

Authors

Authors

M. El Houmaidi; M. A. Bassiouni;G. F. Li

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Opt. Netw.

Keywords

WDM NETWORKS; EFFICIENT PROTECTION; LOGICAL TOPOLOGIES; BACKUP TREES; DESIGN; RESTORATION; RELIABILITY; SCHEME; IP; Computer Science, Hardware & Architecture; Computer Science, Information; Systems; Optics; Telecommunications

Abstract

We present what we believe to be a new fault-tolerant path-protection scheme, FTPP, for WDM mesh networks based on the alarming state of network nodes and links. Our extensive simulation results show that FTPP outperforms known path-protection schemes in terms of loss-of-service ratio and network throughput. The simulation tests used a wide range of values for the load intensity, the failure arrival rate, and the failure holding time. The effectiveness of our method has been demonstrated with the U. S. long-haul and the NSFNET topologies. We next extend the FTPP scheme to the differentiated services model and evaluate its connection blocking performance. We introduce a quality-of-service- (QoS-) enhanced FTPP (QEFTPP) routing and path-protection scheme in WDM networks. QEFTPP uses preemption to minimize the connection blocking percentage for high-priority traffic. Extensive simulation results show that QEFTPP can achieve a clear QoS differentiation among the traffic classes and at the same time provide good overall network performance. (c) 2005 Optical Society of America.

Journal Title

Journal of Optical Networking

Volume

4

Issue/Number

4

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

176

Last Page

190

WOS Identifier

WOS:000234511300001

ISSN

1536-5379

Share

COinS