DocumentCode :
1897709
Title :
Proportional QoS over OBS networks
Author :
Chen, Yang ; Hamdi, Mounir ; Tsang, Danny H K
Author_Institution :
Electr. & Electron. Dept., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Volume :
3
fYear :
2001
fDate :
2001
Firstpage :
1510
Abstract :
Optical burst switching (OBS) is considered as an efficient switching technique for building the next generation optical Internet. An offset-time based scheme has recently been proposed in order to provide quality-of-service (QoS) in OBS networks. Unfortunately, the proposed service differentiation has several problems. The aim of this paper is to address these problems and introduce the concept of proportional QoS into this OBS paradigm. An intentional dropping scheme is proposed so as to give a controllable burst loss probability for different service classes. In order to achieve flexible packet delay differentiation, we extend the well-known waited-time-priority (WTP) scheduler to form a burst assembling scheme. Simulations are conducted to evaluate the performance of our proportional QoS provisioning within OBS networks in terms of burst loss probability and packet delay
Keywords :
Internet; optical fibre networks; packet switching; probability; protocols; quality of service; scheduling; telecommunication congestion control; telecommunication network management; telecommunication network routing; wavelength division multiplexing; IP traffic; QoS provisioning; WDM; WTP scheduler; burst assembling scheme; controllable burst loss probability; intentional dropping scheme; management schemes; next generation optical Internet; offset-time based scheme; optical burst switching; packet delay differentiation; performance evaluation; protocols; quality of service; service classes; service differentiation; waited-time-priority scheduler; wavelength division multiplexing; Assembly; Delay; High speed optical techniques; Optical buffering; Optical burst switching; Optical losses; Optical network units; Optical packet switching; Telecommunication traffic; Web and internet services;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
Type :
conf
DOI :
10.1109/GLOCOM.2001.965833
Filename :
965833
Link To Document :
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