Content adaptation of IPTV services in Interactive DVB-T systems

This paper discusses how Content Adaptation of IPTV Services may enable decentralized Interactive DVB-T systems (IDVB-T) to optimize the utilization of their network resources, while offering End Users the higher possible QoE. The paper describes the design and overall architecture of a regenerative IDVB-T infrastructure, where content adaptation processes are performed following either a centralized or a distributed approach, setting the basis for a real time accommodation of IPTV services to the available network resources (i.e. bandwidth) and capabilities of End Users terminals (i.e. processing power, screen resolution, codec support). Validity of both Content Adaptation approaches is experimentally verified, with the initial test-results indicating similar performance.