Title

Improving Fairness With Novel Adaptive Routing in Optical Burst-Switched Networks

Authors

Authors

X. B. Gao;M. A. Bassiouni

Comments

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

Abbreviated Journal Title

J. Lightwave Technol.

Keywords

Adaptive routing; fairness; optical burst switching (OBS); wavelength; division multiplexing; WDM NETWORKS; PERFORMANCE; Engineering, Electrical & Electronic; Optics; Telecommunications

Abstract

In most existing studies of optical burst-switched networks, adaptive routing is based on deflection routing and/or feedback from the past intervals which often introduces excessive transmission delay and architectural complexity. Our proposed novel adaptive routing schemes, however, consider the transient link congestion at the moment when the bursts arrive and have potential to reduce the overall burst loss probability. Moreover, they can utilize the same offset times for the same node pairs implying zero additional transmission delay and simplicity. The proposed hop-by-hop routing schemes also aim to address the intrinsic unfairness defect of existing popular signaling protocols by increasing the effective link utilization. The results show that the proposed schemes generally outperform shortest path routing and depending on the routing strategy involved, the network topology and the traffic load, this improvement can be substantial. We develop analytical loss models to demonstrate the need for such an adaptive routing scheme at each hop and show its effectiveness. We also verify the analytical results by simulation.

Journal Title

Journal of Lightwave Technology

Volume

27

Issue/Number

20

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

4480

Last Page

4492

WOS Identifier

WOS:000269394600011

ISSN

0733-8724

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