Coordinating IP QoS and Traffic Engineering for Guaranteeing Graceful QoE Degradation  

作　　者：YANG Qiang WU Chunming 

机构地区：[1]College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China [2]College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China

出　　处：《Chinese Journal of Electronics》2012年第1期121-124,共4页电子学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation ofChina （No.61070157, No.61070213） and the National High Technology Research and Development Program of China （863 Program） （No.2008AA01A323, No.2009AA01A334）.

摘　　要：Increasing operational complexity becomes the major technical challenge for practically deploying and managing mechanisms to guarantee acceptable real-time SLAs. This paper exploits a cost-effective coordinated approach that combines OSPF-TE with new advances in configuring existing active queue management algorithm. Extensive numerical simulation result suggests that a sim- ple, coordinated approach, in keeping with the Internet paradigm, can achieve increased load for a given VoIP qual- ity level and graceful degradation of Quality of experience （QoE） in presence of network congestion.

关 键 词：Random early detection （RED） Open shortest path first-Traffic engineering （OSPF-TE） One- way delay Effective loss R-factor. 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术] TP393[自动化与计算机技术—计算机科学与技术]