Management of quality of service in optical packet switches equipped with fixed input, tunable output wavelength converters is described. This kind of switch is considered with the aim to keep switch cost low by employing simple shared optical components and low-complexity space switching matrices. In particular, differentiation among classes of service in terms of loss performance for bufferless switches is addressed. The functionalities described refer to the high-speed multiservice networking context foreseeable for the future Internet. A switch control algorithm to manage service classes in a slotted multiplexing context is described. An analytical model to evaluate the loss probability of each class is developed and validated against a simulation and is used to prove the effectiveness of the quality-of-service approach. Numerical results show that the proposed scheme achieves basic class isolation as needed in core network optical packet switches.

Loss Analysis of Multiple Service Classes Shared-Per-Wavelength Optical Packet Switches / Cianfrani, Antonio; Eramo, Vincenzo; A., Germoni; C., Raffaelli; M., Savi. - In: JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING. - ISSN 1943-0620. - STAMPA. - 1:2(2009), pp. A69-A80. [10.1364/JOCN.1.000A69]

Loss Analysis of Multiple Service Classes Shared-Per-Wavelength Optical Packet Switches

CIANFRANI, Antonio;ERAMO, Vincenzo;
2009

Abstract

Management of quality of service in optical packet switches equipped with fixed input, tunable output wavelength converters is described. This kind of switch is considered with the aim to keep switch cost low by employing simple shared optical components and low-complexity space switching matrices. In particular, differentiation among classes of service in terms of loss performance for bufferless switches is addressed. The functionalities described refer to the high-speed multiservice networking context foreseeable for the future Internet. A switch control algorithm to manage service classes in a slotted multiplexing context is described. An analytical model to evaluate the loss probability of each class is developed and validated against a simulation and is used to prove the effectiveness of the quality-of-service approach. Numerical results show that the proposed scheme achieves basic class isolation as needed in core network optical packet switches.
2009
Fiber optics and optical communications : Optical communications; Fiber optics and optical communications : All-optical networks; Fiber optics and optical communications : Networks; packet-switched; Fiber optics and optical communications : Switching; packet
01 Pubblicazione su rivista::01a Articolo in rivista
Loss Analysis of Multiple Service Classes Shared-Per-Wavelength Optical Packet Switches / Cianfrani, Antonio; Eramo, Vincenzo; A., Germoni; C., Raffaelli; M., Savi. - In: JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING. - ISSN 1943-0620. - STAMPA. - 1:2(2009), pp. A69-A80. [10.1364/JOCN.1.000A69]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/365053
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