Dynamic admission control for differentiated quality of video in IEEE 802.11e wireless LANs

Hayoung Yoon; JongWon Kim

doi:10.1117/12.580540

25 October 2004 Dynamic admission control for differentiated quality of video in IEEE 802.11e wireless LANs

Hayoung Yoon, JongWon Kim

Proceedings Volume 5601, Internet Multimedia Management Systems V; (2004) https://doi.org/10.1117/12.580540
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

In this paper, we are investigating a dynamic admission control (DAC) scheme that is designed for guaranteed wireless video transmission over the IEEE 802.11e wireless LAN (WLAN) environment. To guarantee differentiated QoS services for network-adaptive video streaming, the proposed DAC is designed to utilize the video codec's layering characteristic as well as differentiation-capability of IEEE 802.11e MAC (multiple access control). Especially in order to match the time-varying hostile wireless environment, limited wireless resources for transmission opportunities are required to be dynamically reserved, coordinated, and utilized. Proposed realization of DAC is composed with three sub modules: reservation-based call admission control (CAC), dynamic service resource allocation, and on-flow service differentiation modules. To evaluate the performance of proposed DAC, we apply it to the wireless streaming of ITU-T H.263+ streams over the IEEE 802.11e WLAN, network simulator (NS-2) based simulation results show that it achieves both acceptable receiver-side video quality and efficient resource utilization in face of network loads and channel variations.

Citation Download Citation

Hayoung Yoon and JongWon Kim "Dynamic admission control for differentiated quality of video in IEEE 802.11e wireless LANs", Proc. SPIE 5601, Internet Multimedia Management Systems V, (25 October 2004); https://doi.org/10.1117/12.580540

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