End-to-end absolute differentiated services for real-time traffic

被引:0
|
作者
Yang, JM [1 ]
Huang, CC [1 ]
机构
[1] Carleton Univ, Ottawa, ON K1S 5B6, Canada
来源
Performance Challenges for Efficient Next Generation Networks, Vols 6A-6C | 2005年 / 6A-6C卷
关键词
QoS; DiffServ; relative DVP; absolute DVP; DDRR scheduler; traffic engineering; end-to-end;
D O I
暂无
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
For many real-time applications (i.e. VoIP), the absolute quality of service (QoS) requirements should be guaranteed. In this paper, we propose a novel dynamic congestion control framework for scalable support of absolute end-to-end QoS in differentiated services (DiffServ) networks. With dynamic measured feedback control and traffic regulation at edges and relative DiffServ support at core routers, the proposed framework provides quantitative per-class deadline violation probability (DVP) guarantee. More specifically, we extend relative DVP from a single node to an end-to-end path by developing a bound for end-to-end relative DVP. In order to support the framework better, we present a unified scheduler, the Dynamic Deficit Round Robin (DDRR) scheduler, which combines generalized processor sharing (GPS) with relative DiffServ. Simulations are carried out to illustrate the performance of our proposed framework and scheduler under both single-node and multi-node cases.
引用
收藏
页码:1425 / 1434
页数:10
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