Feasibility of QoS control based on QoS mapping over IP networks

Authors:
Yoshihiro Ito;Shuji Tasaka
Affiliations:
Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan;Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
Venue:
Computer Communications
Year:
2008

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Abstract

This paper proposes a method for testing feasibility of QoS control based on QoS mapping. In multimedia applications over IP networks, it is important to investigate how we enhance user-level QoS of audio-video transmission. As one of the methods, we can control QoS at lower levels so that user-level QoS keeps high according to a result of QoS mapping. However, there is no guarantee that a given scheme of QoS control at lower levels can give desirable user-level QoS. Therefore, we must examine the feasibility of the QoS control. In order to test it, we introduce concepts of the feasibility space and the decision boundary, which are obtained by the QoS mapping with multiple regression analysis. To show the effectiveness of our method, as an illustration, we utilize the simulation results in a previous work by the authors' research group. The simulation treats EDCA of IEEE 802.11e and VTR media synchronization control as node-level QoS control and application-level one, respectively.