Network-Adaptive HD Video Streaming with Cross-Layered WLAN Channel Monitoring 


Vol. 31,  No. 4, pp. 421-430, Apr.  2006


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  Abstract

In this paper, we propose a practical implementation of network-adaptive HD(high definition) MPEG-2 video streaming with a cross-layered channel monitoring(CLM) over the IEEE 802.11a WLAN(wireless local area network). For wireless channel monitoring, AP(access point) periodically measures the MAC(medium access control) layer transmission information and sends the monitoring information to a streaming server. This makes that the streaming server reacts more quickly as well as efficiently to the fluctuated wireless channel than that of the end-to-end monitoring(E2EM) scheme for the video adaptation. The streaming server dynamically performs the priority-based frame dropping to adjust the video sending rate according to the measured wireless channel condition. For this purpose, our streaming system nicely provides frame-based prioritized packetization by using a real-time stream parsing module. Various evaluation results over an IEEE 802.11a WLAN testbed are provided to verify the intended QoS adaptation capability. The experimental results show that the proposed system can effectively mitigate the quality degradation of video streaming caused by the fluctuations of time-varying wireless channel condition.

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  Cite this article

[IEEE Style]

S. Park, H. Yoon, J. Kim, C. Cho, "Network-Adaptive HD Video Streaming with Cross-Layered WLAN Channel Monitoring," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 4, pp. 421-430, 2006. DOI: .

[ACM Style]

SangHoon Park, Hayoung Yoon, JongWon Kim, and ChangSik Cho. 2006. Network-Adaptive HD Video Streaming with Cross-Layered WLAN Channel Monitoring. The Journal of Korean Institute of Communications and Information Sciences, 31, 4, (2006), 421-430. DOI: .

[KICS Style]

SangHoon Park, Hayoung Yoon, JongWon Kim, ChangSik Cho, "Network-Adaptive HD Video Streaming with Cross-Layered WLAN Channel Monitoring," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 4, pp. 421-430, 4. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880