Maurizio Murroni, Sandro Scalise, Alessandro Vanelli-Coralli, Sooyoung Kim, Robert Briskman

“ The migration from analog to digital of the broadcasting technologies, already well consolidated for satellite systems, is becoming a reality also for terrestrial transmission. Digital Terrestrial Television (DTT) is also evolving to offer interactive services and a degree of flexibility which can be exploited to offer tailored applications to users which include, for instance interactivity, different levels of personalization, and innovative location-based, as well as context-aware, services. ”

“ A contents’ source utilizes a satellite DVB-S2 link for transmitting video streams to a bus, which, in its turn, relays it to its passengers’ devices. A bus works in a smart mode taking advantage of the knowledge of the exact points where it will not receive the satellite signal for a certain time period, due to fixed obstacles. Finally, the third one entitled “Modeling and performance analyses of hybrid cellular and broadcasting networks” considers the combination of the cellular network UMTS and the mobile broadcast network DVB-H, which form a hybrid network. ”

“ The last section covers System and Service for IPTV and Interactive TV. In the first paper “Theoretical models for video on demand services on peer-to-peer networks,” the authors study the scenario P2P-based VoD services and propose four models of the peer behavior to evaluate the impact of the peer churn on the system performance. ”