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Dynamic Rate and FEC Adaptation for Video Multicast in Multi-rate Wireless Networks

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Abstract

Video multicast over Wireless Local Area Networks (WLANs) faces many challenges due to varying channel conditions and limited bandwidth. A promising solution to this problem is the use of packet level Forward Error Correction (FEC) mechanisms. However, the adjustment of the FEC rate is not a trivial issue due to the dynamic wireless environment. This decision becomes more complicated if we consider the multi-rate capability of the existing wireless LAN technology. In this paper, we propose a novel method which dynamically adapts the transmission rate and FEC for video multicast over multi-rate wireless networks. In order to evaluate the system experimentally, we implemented a prototype using open source drivers and socket programming. Our experimental results show that the proposed system significantly improves the multicast system performance.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, Polytechnic Institute of NYU, Brooklyn, NY, USA

    Özgü Alay, Thanasis Korakis, Yao Wang & Shivendra Panwar

Authors
  1. Özgü Alay
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  2. Thanasis Korakis
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  3. Yao Wang
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  4. Shivendra Panwar
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Corresponding author

Correspondence to Özgü Alay.

Additional information

This work is supported in part by National Science Foundation (NSF) under award 0430885, and the New York State Center for Advanced Technology in Telecommunications (CATT). The work is also supported by Wireless Internet Center for Advanced Technology (WICAT), an NSF Industry/University Research Center at the Polytechnic Institute of NYU.

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Alay, Ö., Korakis, T., Wang, Y. et al. Dynamic Rate and FEC Adaptation for Video Multicast in Multi-rate Wireless Networks . Mobile Netw Appl 15, 425–434 (2010). https://doi.org/10.1007/s11036-009-0202-5

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  • DOI: https://doi.org/10.1007/s11036-009-0202-5

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