On Next-Generation Telco-Managed P2P TV Architectures

In recent years, Telcos worldwide have deployed IPTV networks to offer cable TV-like services over the IP backbones. Such walled garden IPTV networks are provisioned to guarantee the quality of service, fast channel switching, and user experience expected by TV viewers. A common key design element of these networks is the use of IP multicast within a single network domain in broadcasting of several hundreds of TV channels to millions of receivers. However, as the amount of content and channels increase and users demand more interactive and asynchronous viewing, current IPTV architectures are showing clear limitations.