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A Delivery Method for Compound Video Playback in Wireless Network

  • Kazuya Uyama
  • Morihiko Tamai
  • Yoshihiro Murata
  • Naoki Shibata
  • Keiichi Yasumoto
  • Minoru Ito
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4331)

Abstract

In this paper, we propose a method to realize compound video (multiple videos on a layout)delivery service for mobile terminals. In the proposed method, we introduce proxies which receive multiple videos from corresponding servers and produce a composite video from the received videos in real-time according to the layouts which users specify. However, if users require sets of videos with slightly different layouts, multiple similar composite videos will be generated and the wireless bandwidth will be suppressed to transfer them. So, the proposed method identifies the common part in layouts of user requirements, and transmits to each user a composite video corresponding to the common part and remaining videos. We have developed a greedy algorithm which calculates the set of videos to be transmitted within the available bandwidth, so that the sum of satisfaction degrees of all users is maximized. Through experiments, we confirmed that our method can achieve much higher user satisfaction degrees compared to the case that each user terminal receives multiple videos separately and plays them back in parallel.

Keywords

Access Point Greedy Algorithm Mobile Terminal Distribution Dist User Request 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    ISDB-T(Integrated Services Digital Broadcasting-Terrestrial), http://www.dibeg.org/techp/isdb/isdbt.htm
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    DVB-H Global Mobile TV, http://www.dvb-h.org/
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    ATSC Home Page, http://www.atsc.org/
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    T-DMB Home Page, http://eng.t-dmb.org/
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    Jin, J., Nahrstedt, K.: Source-based qos service routing in distributed service networks. In: IEEE International Conference on Communications (2004)Google Scholar
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    Liang, J., Nahrstedt, K.: Service Composition for Advanced Multimedia Applications. Multimedia Computing and Networking (MMCN 2005) (2005)Google Scholar
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    Nahrstedt, K., Yu, B., Liang, J., Cui, Y.: Hourglass Multimedia Content and Service Composition Framework for Smart Room Environements. Elsevier Journal on Pervasive and Mobile Computing (2005)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Kazuya Uyama
    • 1
  • Morihiko Tamai
    • 1
  • Yoshihiro Murata
    • 1
  • Naoki Shibata
    • 2
  • Keiichi Yasumoto
    • 1
  • Minoru Ito
    • 1
  1. 1.Graduate School of Information ScienceNara Institute of Science and TechnologyNaraJapan
  2. 2.Department of Information Processing and ManagementShiga UniversityHikone, ShigaJapan

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