Absolute priority just-enough-time scheme for absolute quality of service in optical-burst-switching networks
Journal of Optical Networking, Vol. 3, Issue 8, pp. 573-588 (2004)
http://dx.doi.org/10.1364/JON.3.000573
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Abstract
We propose an extension of the popular priority just-enough-time (PJET) system in optical-burst-switched networks to provide absolute quality-of-service (QoS) differentiation. PJET is a simple QoS protocol that provides relative service differentiation by means of an extra offset time given to higher-priority bursts. By the innovative use of fiber delay lines (FDLs) and an accompanying token algorithm, we are able to achieve an absolute QoS technique that provides a worst-case loss probability for the guaranteed traffic. This absolute PJET technique is similar to the PJET scheme in that it conforms to the conservation law at high loads. This means that the drop probability of low-priority bursts is kept to a minimum. This is a significant advantage over existing absolute QoS techniques that employ intentional dropping or wavelength reservation, which does not conform to the conservation law.
© 2004 Optical Society of America
OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(060.4510) Fiber optics and optical communications : Optical communications
(220.4830) Optical design and fabrication : Systems design
ToC Category:
RESEARCH PAPERS
History
Original Manuscript: March 26, 2004
Revised Manuscript: March 26, 2004
Published: July 7, 2004
Citation
Kian Jui Tan, Li-Jin Ian Thng, and Hailong Li, "Absolute priority just-enough-time scheme for absolute quality of service in optical-burst-switching networks," J. Opt. Netw. 3, 573-588 (2004)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jon-3-8-573
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