Proportional differentiated services: delay differentiation and packet scheduling
IEEE/ACM Transactions on Networking (TON)
From relative to observable proportional differentiation in OBS networks
CoNEXT '05 Proceedings of the 2005 ACM conference on Emerging network experiment and technology
Analysis of OBS networks with limited wavelength conversion
IEEE/ACM Transactions on Networking (TON)
Preemption rates for a parallel link loss network
Performance Evaluation
Performance of deflection routing algorithms in IP optical transport networks
Computer Networks: The International Journal of Computer and Telecommunications Networking - Optical networks
IEEE Communications Surveys & Tutorials
Proportional differentiation: a scalable QoS approach
IEEE Communications Magazine
JumpStart deployments in ultra-high-performance optical networking testbeds
IEEE Communications Magazine
QoS performance of optical burst switching in IP-over-WDM networks
IEEE Journal on Selected Areas in Communications
Performance analyses of optical burst-switching networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Absolute QoS differentiation in optical burst-switched networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications - Part Supplement
Generalized wavelength sharing policies for absolute QoS guarantees in OBS networks
IEEE Journal on Selected Areas in Communications - Part Supplement
Stabilizing deflection routing in optical burst switched networks
IEEE Journal on Selected Areas in Communications - Part Supplement
Optimal Wavelength Sharing Policies in OBS Networks Subject to QoS Constraints
IEEE Journal on Selected Areas in Communications - Part Supplement
A case for relative differentiated services and the proportional differentiation model
IEEE Network: The Magazine of Global Internetworking
Optical burst switching: a new area in optical networking research
IEEE Network: The Magazine of Global Internetworking
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In this paper, we propose probabilistic splitting of a packet stream at the edge routers as the basic method to provide end-to-end proportional QoS to packet flows carried through an OBS network, in terms of loss probability. We argue that the only requirement that the optical transport infrastructure has to satisfy is the support for two internal burst classes with wide separation between their respective service levels. Under this condition, we show how quantifiable end-to-end per-flow guarantees can be attained without diminishing network resource usage. The scheme is analyzed theoretically and evaluated through numerical simulations, both in regular topologies (ring networks) and in a mesh network. Our results suggest that a layered approach to the problem of end-to-end QoS provisioning can be very effective when a proportional service model is offered, and that the research on sophisticated scheduling algorithms at the optical switches could be too narrow-focused for that purpose.