Performance Analysis of Distributed Protocols for Bidirectional Wavelength Reservations in Dynamic WDM Networks

Performance Analysis of Distributed Protocols for Bidirectional Wavelength Reservations in... In this paper, we present an analytical model to investigate the blocking performance of distributed wavelength reservation protocols in dynamic WDM networks. This model extends the approach of [S. Arakawa et al., Proceedings of ITC-CSCC, (Sado, Japan, July 1999), pp. 828--831] in two aspects: firstly we take into account the contention between the two end nodes of bidirectional links in bidirectional wavelength reservations. Secondly, we make a distinction between the effects of different kinds of network delays, which include signaling transmission delay, signaling processing delay, and optical cross-connects (OXC) operation delay. As an application, we use our method to analyze the performance of two different signaling processing schemes, namely forward after cross-connect (FAXC) and forward before cross-connect (FBXC) [M. Goyal et al., Technical Digest of OFC2002 (Anaheim, CA, Mar. 2002) pp. 489--490]. The accuracy of our analytical model is validated by discrete-event simulations. Numerical results show that the FBXC scheme can give a lower network blocking probability than FAXC, and the efficiency of FBXC becomes more significant as the OXC operation delay increases. Photonic Network Communications Springer Journals

Performance Analysis of Distributed Protocols for Bidirectional Wavelength Reservations in Dynamic WDM Networks

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Kluwer Academic Publishers
Copyright © 2005 by Springer Science+Business Media, Inc.
Computer Science; Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials
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