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

    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