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

Özgü Alay, Thanasis Korakis, Yao Wang, Shivendra Panwar
2009 Journal on spesial topics in mobile networks and applications  
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
more » ... el 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.
doi:10.1007/s11036-009-0202-5 fatcat:jth5gjbcu5gm5o6jz2vhewksya