Network-adaptive high definition MPEG-2 streaming over IEEE 802.11a WLAN using frame-based prioritized packetization

Authors:
SangHoon Park;Seungjoo Lee;JongWon Kim
Affiliations:
Gwangju Institute of Science and Technology (GIST), Gwangju, KOREA;Gwangju Institute of Science and Technology (GIST), Gwangju, KOREA;Gwangju Institute of Science and Technology (GIST), Gwangju, KOREA
Venue:
Proceedings of the 3rd ACM international workshop on Wireless mobile applications and services on WLAN hotspots
Year:
2005

Citing 2
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Abstract

In this paper, we propose a practical implementation of network-adaptive HD (high definition) MPEG-2 streaming using frame-based prioritized packetization over the IEEE 802.11a WLAN (wireless local area network). The proposed adaptive streaming system nicely provides frame-based prioritized packetization by developing a real-time MPEG-2 TS (transport stream) parsing tool. It then dynamically performs priority-based droppings of packets according to the network status observed by end-to-end monitoring. The implemented system thus can mitigate the long-term fluctuations of time-varying channel only with negligible delays. Evaluation results over an IEEE 802.11a WLAN testbed are provided to verify the intended QoS adaptation capability.