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Proceedings Paper

An adaptive scheduling scheme for fair bandwidth allocation
Author(s): Wei Liu; Wenqing Cheng; Jianhua He; Chunhui Le; Zongkai Yang
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Paper Abstract

Class-based service differentiation is provided in DiffServ networks. However, this differentiation will be disordered under dynamic traffic loads due to the fixed weighted scheduling. An adaptive weighted scheduling scheme is proposed in this paper to achieve fair bandwidth allocation among different service classes. In this scheme, the number of active flows and the subscribed bandwidth are estimated based on the measurement of local queue metrics, then the scheduling weights of each service class are adjusted for the per-flow fairness of excess bandwidth allocation. This adaptive scheme can be combined with any weighted scheduling algorithm. Simulation results show that, comparing with fixed weighted scheduling, it effectively improve the fairness of excess bandwidth allocation.

Paper Details

Date Published: 8 February 2005
PDF: 9 pages
Proc. SPIE 5626, Network Architectures, Management, and Applications II, (8 February 2005); doi: 10.1117/12.574964
Show Author Affiliations
Wei Liu, Huazhong Univ. of Science and Technology (China)
Wenqing Cheng, Huazhong Univ. of Science and Technology (China)
Jianhua He, Huazhong Univ. of Science and Technology (China)
Chunhui Le, Huazhong Univ. of Science and Technology (China)
Zongkai Yang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5626:
Network Architectures, Management, and Applications II
S. J. Ben Yoo; Gee-Kung Chang; Guangcheng Li; Kwok-wai Cheung, Editor(s)

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