Title :
Proportional differentiation: a scalable QoS approach
Author :
Chen, Yang ; Qiao, Chunming ; Hamdi, Mounir ; Tsang, Danny H K
Author_Institution :
State Univ. of New York, Buffalo, NY, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
The proportional service model has gained attention as an effective solution for quantitative service differentiation in IP networks. In particular, this differentiation scheme is controllable, consistent, and scalable. Thus, it gives network operators convenient management of services and resources even in a large-scale network. We give an overview of research efforts on this QoS model. Details about implementation strategies for various QoS metrics are provided. We also discuss how to achieve absolute service bounds in this relative differentiation model with different approaches. Several problems such as feasibility in differentiation are mentioned as open research issues at the end.
Keywords :
Internet; delays; packet switching; quality of service; queueing theory; telecommunication traffic; IP networks; Internet traffic; QoS metrics; QoS model; controllable differentiation; differentiation model; large-scale network; network operators; proportional differentiation; proportional packet delay; proportional packet loss; proportional service model; research; resource management; scalable QoS; scalable differentiation; service bounds; service differentiation; service management; weighted fair queuing; Delay; Differential equations; Diffserv networks; Fluctuations; IP networks; Proportional control; Scalability; Scheduling algorithm; Time measurement; Traffic control;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2003.1204748
