An adaptive frame-based admission control for multimedia traffic in wireless LAN

Authors:
Jinsuk Pak;Yongsik Kwon;Kijun Han
Affiliations:
Department of Computer Engineering, Kyungpook National University, Daegu, Korea;Advanced Technology Lab. R&D Group, KT2, Daejeon, Korea;Department of Computer Engineering, Kyungpook National University, Daegu, Korea
Venue:
Proceedings of the 2007 conference on Human interface: Part I
Year:
2007

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Abstract

Improving the performance of delay-constrained video streaming over wireless networks is one of the most important issues for various multimedia-related applications, as well as for the efficient overall utilization of the wireless medium. In this paper, we propose a scheme for adaptive admission control and scheduling for frame-based multimedia traffic in the 802.11 wireless local area networks. The conventional scheduler used for IEEE 802.11e is not suitable for VBR traffic such as MPEG-4 because only a single fixed TXOP is allocated from the hybrid Coordinator. In our scheme, we divide an MPEG flow into three different classes of video-frames depending on the user-QoS, and Our scheme is distributed admission control for each divided videoframe types and poll scheduling adaptive admission control for the flow.