TV services over the Internet can be provided either exploiting IP multicast functionalities or relying on an end-to-end (P2P) approach. The former technique will only work on a network infrastructure controlled by a single broadband operator, due to limitations of IP multicast techniques. On the contrary, the P2P approach has been successfully exploited to overcome these limits and can potentially offer a scalable planetary infrastructure. Recently, several P2P-TV systems started to show up, with the last generation offering High Quality TV (P2P-HQTV) systems, providing a ubiquitous access to the service. These same potentialities of P2P-TV systems constitute a worry for network carriers since the traffic they generate may potentially grow without control, causing a degradation of the quality of service perceived by Internet users or even the network collapse (and the consequent failure of the P2P-HQTV service itself!). The research activities in the field of P2P-TV mainly aims at:
The TNG group at POLITO is leading the NAPA-WINE FP7 STREP (www.napa-wine.eu) project on these topics.
Contact person: LEONARDI EMILIO