Loss differentiation in OBS networks without wavelength-conversion capability

Author

González-Ortega, Miguel A. ; López-Ardao, José C. ; López-García, Cándido ; Argibay-Losada, Pablo ; Rodríguez-Rubio, Raúl F. ; Piñeiro-Valladares, Manuel

Author_Institution

Dept. of Telematic Eng., Univ. of Vigo, Vigo

Volume

12

Issue

12

fYear

2008

fDate

12/1/2008 12:00:00 AM

Firstpage

903

Lastpage

905

Abstract

Service differentiation is an open research issue in OBS networks. Most proposals assume full wavelength-conversion, but wavelength converters are still very complex and expensive. We propose the QoS Multiple Wavelength Simultaneous Transmission technique (QoS-MWST), a novel method for providing loss differentiation in OBS networks without wavelength-conversion capability (or even limited capability). In QoS-MWST, multiple copies of each burst are simultaneously sent on different wavelengths, and loss differentiation is achieved by properly sending more copies of the higher-priority bursts. Through analysis and simulation, we prove that QoS-MWST can efficiently provide loss differentiation in this type of OBS networks.

Keywords

optical burst switching; optical fibre networks; quality of service; OBS networks; QoS multiple wavelength simultaneous transmission technique; optical burst switching; service differentiation; wavelength converters; wavelength-conversion capability; Analytical models; Cloning; Optical fiber communication; Optical losses; Optical wavelength conversion; Propagation losses; Proposals; Quality of service; Telecommunication traffic; Wavelength division multiplexing; Computer network performance, Wavelength division multiplexing, Optical communication;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2008.081178

Filename

4720246