5th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities

Research Article

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

  • @INPROCEEDINGS{10.1109/TRIDENTCOM.2009.4976231,
        author={Ozgu Ala and Caleb Li and Anurag Rai and Thanasis Korakis and Yao Wang and Shivendra Panwar},
        title={Dynamic Rate and FEC Adaptation for Video Multicast in Multi-rate Wireless Networks},
        proceedings={5th International ICST Conference on Testbeds and  Research Infrastructures for the Development of Networks and Communities},
        publisher={IEEE},
        proceedings_a={TRIDENTCOM},
        year={2009},
        month={5},
        keywords={IEEE 802.11b  forward error correction  rate adaptation  video multicast  wireless networks},
        doi={10.1109/TRIDENTCOM.2009.4976231}
    }
    
  • Ozgu Ala
    Caleb Li
    Anurag Rai
    Thanasis Korakis
    Yao Wang
    Shivendra Panwar
    Year: 2009
    Dynamic Rate and FEC Adaptation for Video Multicast in Multi-rate Wireless Networks
    TRIDENTCOM
    IEEE
    DOI: 10.1109/TRIDENTCOM.2009.4976231
Ozgu Ala1,*, Caleb Li1,*, Anurag Rai2,*, Thanasis Korakis1,*, Yao Wang1,*, Shivendra Panwar1,*
  • 1: Dept. of Electrical and Computer Engineering, Polytechnic Institute of NYU, Brooklyn, NY
  • 2: Department of Computer Science and Engineering, Indian Institute of Technology Kanpur, India
*Contact email: ozgu@vision.poly.edu, cli20@students.poly.edu, anurai@iitk.ac.in, korakis@poly.edu, yao@poly.edu, panwar@catt.poly.edu

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 multirate 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.