CACHING AND SCHEDULING MECHANISMS FOR H.264 VIDEO FLOW DELIVERY OVER DISCONTINUOUS COVERAGE WIRELESS NETWORKS

Azza Jedidi, Frédéric Weis, Sylvaine Kerboeuf, Marie-Line Alberi Morel

2008

Abstract

The past few years have witnessed the deployment of a wide variety of multimedia applications over wireless networks. As a consequence, mobile users are demanding fast and efficient connectivity, especially concerning start-up delays and flow quality. Wireless networks aim at providing an everywhere coverage without prohibitive deployment costs. Thus, the coverage of each access point is extended with detriment to the mean throughput of the radio cell. The throughput of each zone decreases non-uniformely from the cell center to the cell edge. The coverage is continuous, but radio conditions met by users are not homogeneous. In fact, the data rate varies according to user mobility. In the context of streaming applications, intermittent high rate availability may lead to service disruption, especially when user number’s increases. Thus, it is essential to design a network architecture able to efficiently deliver video flows to mobile users. In our work, a new equipment, called network cache, is introduced. The latter performs efficient flow caching and scheduling, in order to guarantee service continuity. The simulation shows that the proposed architecture gives satisfying service start-up delays and improves system scalability.

References

  1. Kangasharju, J., Hartanto, F., Reisslein, M., and Ross, K. W. (2002). Distributing layered encoded video through caches. IEEE Transactions on Computers, 51(6), pp. 622-636.).
  2. Luu, A., Morel, M.-L. A., Kerboeuf, S., Ménard, R., Tlais, M., and Weis, F. (2007). Improving Wireless Network Capacity by Introducing Logical Discontinuous Coverage. Report).
  3. REJAIE, R. and REIBMAN, A. (2001). Design issues for layered quality adaptive internet video playback. In Workshop on Digital Communications (Taormina, Italy).
  4. Sen, S., Rexford, J., and Towsley, D. (1999). Proxy prefix caching for multimedia streams. In IEEE INFOCOM 99, New York, NY.
  5. Wang, Y.-C., Tseng, Y.-C., and Chen, W.-T. MR-FQ: A Fair Scheduling Algorithm for Wireless Networks with Variable Transmission Rates. Simulation: Transactions of The Society for Modeling and Simulation International, accepted, 2005. (SCI)).
  6. Wu, K. L., Yu, P. S., , and Wolf, J. L. (2001). Segmentbased proxy caching of multimedia streams. In World Wide Web Conference(WWW10), Hong Kong.
  7. Yuen, J., Lam, K.-Y., and Chan, E. (2002). A fair and adaptive scheduling protocol for video stream transmission in mobile environment. In IEEE International Conference on Multimedia and Expo, Lausanne, Switzerland.
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Paper Citation


in Harvard Style

Jedidi A., Weis F., Kerboeuf S. and Alberi Morel M. (2008). CACHING AND SCHEDULING MECHANISMS FOR H.264 VIDEO FLOW DELIVERY OVER DISCONTINUOUS COVERAGE WIRELESS NETWORKS . In Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008) ISBN 978-989-8111-62-3, pages 66-73. DOI: 10.5220/0002022200660073


in Bibtex Style

@conference{winsys08,
author={Azza Jedidi and Frédéric Weis and Sylvaine Kerboeuf and Marie-Line Alberi Morel},
title={CACHING AND SCHEDULING MECHANISMS FOR H.264 VIDEO FLOW DELIVERY OVER DISCONTINUOUS COVERAGE WIRELESS NETWORKS},
booktitle={Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008)},
year={2008},
pages={66-73},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002022200660073},
isbn={978-989-8111-62-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008)
TI - CACHING AND SCHEDULING MECHANISMS FOR H.264 VIDEO FLOW DELIVERY OVER DISCONTINUOUS COVERAGE WIRELESS NETWORKS
SN - 978-989-8111-62-3
AU - Jedidi A.
AU - Weis F.
AU - Kerboeuf S.
AU - Alberi Morel M.
PY - 2008
SP - 66
EP - 73
DO - 10.5220/0002022200660073