(Georgia Institute of Technology, 2013)
Azgin, Aytac; AlRegib, Ghassan; Altunbasak, Yucel
In this paper, we study the use of peer-assisted
server-based cooperative transmission strategies in IPTV networks for the delivery of on-demand services to end users. The
proposed techniques aim to support the resource efficient delivery
of on-demand content to end users in a timely manner. Within
the proposed framework, a cooperative transmission strategy
suggests that users who have access to the requested content
cooperatively transmit to the targeted set of users. In doing so,
we can minimize the servicing requirements at the server side
and improve the scalability performance in the network. We
conducted extensive simulations using different request arrival
models and showed that significant performance improvements
can be achieved with the proposed delivery techniques to enable
efficient access to an ever growing on-demand content. We also
showed the robustness of the proposed techniques in regard to
variations observed in network state.