Browse > Article

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

Park Sang-Hoon (광주과학기술원 정보통신공학과 네트워크미디어 연구실)
Yoon Ha-Young (광주과학기술원 정보통신공학과 네트워크미디어 연구실)
Kim Jong-Won (광주과학기술원 정보통신공학과 네트워크미디어 연구실)
Cho Chang-Sik (한국전자통신연구원 실시간멀티미디어 연구팀)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.4A, 2006 , pp. 421-430 More about this Journal
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 sewer 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 WLAM 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.
Keywords
Wireless video; Cross-layered channel monitoring; Adaptive streaming; Prioritized packetization; End-to-end QoS;
Citations & Related Records
연도 인용수 순위
  • Reference
1 ISO/IEC 13818-2, Information Technology-Generic Coding of Moving Pictures and Associated Audio Information, Part 2 : Video, May 1996
2 Wilson, J. M. The next generation of wireless LAN emerges with 802.11n. Device Forge, Aug. 2004
3 S. Park, S. Lee, J. Kim and W. Kim, 'Design and Implementation of NetworkAdaptive High Definition MPEG-2 Streaming employing Frame-based Prioritized Packetization,' J. of the Korean Insti. of Commun. Science, vol. 30, no. 10A, pp. 886-895. Dec. 2005   과학기술학회마을
4 MADWIFl, http://sourceforge.net/projects/madwifi
5 IEEE 802.11 WG, Draft Supplement to Part 11: Wireless medium access control(MAC) and physical layer(PHY) specifications: Medium access control(MAC) enhancements for quality of service(QoS), IEEE Standard. 802.11e/D10.0, Sep. 2004
6 D. Wu et. Al., 'Streaming video over the Internet: approaches and directions,' IEEE Trans. on Circuits and Systems for Video Technology, vol. 11, no. 3, Mar. 2001
7 VIXS, http://www.vixs.com
8 S. Park, S. Lee, and J. Kim, 'NetworkAdaptive High Definition MPEG2 Streaming over IEEE 802.11a WLAN using Framebased Prioritized Packetization,' in Proc. ACM WMASH'05, Cologne, Germany, Sep. 2005
9 VideoLAN, http://www.videolan.org
10 H. Schulzrinne. et. al., 'RTP: A Transport Protocol for Real-time Applications,' RFC 1889, Jan. 1996
11 S. Park, S. Lee and J. Kim, 'Adaptive High Definition MPEG-2 TS Straming System using Frame-based Prioritized Packetization over IEEE 802.11a WLAN,' VCIP'05, pp. 1880-1890, Beijing, China, July. 2005
12 ISO/IEC 13818-1, Information TechnologyGeneric Coding of Moving Pictures and Associated Audio Information, Part 1 : System, April 1996
13 D. Qiao, S. Choi, and K. G. Shin, 'Goodput analysis and link adaptation for IEEE 802.11a wireless LANs,' IEEE Trans. on Mobile Computing(TMC), vol. 1, no. 4, pp. 278-292, Oct.-Dec. 2002   DOI   ScienceOn
14 IEEE 802.11a WG, Part 11: Wireless LAN medium access control(MAC) and physical layer(PHY) specification: High-speed physical layer in 5GHz band, IEEE 802.11 Standard, Aug. 1999