The foreseen explosion in online video traffic over the upcoming years
has left current mobile operators struggling to maximize their networks capacity and
efficiency. MEDIEVAL project aims to evolve existing architectures through
relevant cross-layer interactions, permitting to deliver expected QoE levels to users.
In order to alleviate the impact of online video which potentially could be shared by
a group of users in the core network, as well as maximize transport efficiency, the
utilization of multicast and broadcast mechanisms is proposed. Moreover, the
combination of multicast and network-based mobility protocols results in new
problems which must be solved necessarily through network support. By using
multicasting with SVC, where a video is composed by one base layer and possibly
multiple dependent enhancement layers, a same session may traverse the whole core
and be adapted to the different terminal’s characteristics.
In this article, we present the research being developed towards multicast
support in future networks, describing solutions for improving wireless access
efficiency (in 802.11 and LTE), and for enabling IP multicast mobility support.
Further more, the end-to-end support provided by MEDIEVAL in a SVC-based
Personal Broadcast Service (PBS) scenario is analyzed, where both mobile multicast
listeners and sources participate. The interfaces enhancing mobile video support are
examined, along with the key exchanged parameters.
Conference: 2012 Future Network & Mobile Summit in Berlin, Germany