IPTV: Trend towards unicast technology will continue
News from May 22, 2014
Fraunhofer FOKUS and Zattoo publish Whitepaper: In occasion of ANGA COM (Cologne, May 20-22), Fraunhofer FOKUS and Zattoo publish the Whitepaper „Building Unicast IPTV services leveraging OTT streaming technology and adaptive streaming“.
Video streaming generally consists of an audio and video source fed into an encoder, transmitted to a media server, which then supplies connected clients with streaming data. In principle, there are two different models to transport the audio and video packets: unicast and multicast delivery.
Unicast IPTV services (live and on-demand) guarantee the same high quality user experience as traditional multicast-based architectures when leveraging appropriate technology and techniques.
First Screen IPTV services delivered over unicast quality-wise benefit from direct network peering with the network operator. Furthermore, the network operator is able to prioritize the network traffic that is caused by the IPTV service.
HTTP Adaptive Streaming is the foundation for multi-screen video delivery. By taking advantage of existing technology all major devices (e.g. second screens) and platforms can be reached – without any special hardware. Moreover, streaming efficiency and scalability can be significantly increased using strategically positioned Web caches.
In combination the aforementioned techniques lead to the possibility of streaming at maximum bitrate and quality, while lowering complexity and costs compared to traditional multicast-based architectures.