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Cooperative Delivery Techniques to Support Video-on-Demand Service in IPTV Networks

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3 Author(s)
Azgin, A. ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; AlRegib, G. ; Altunbasak, Y.

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 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.

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Multimedia, IEEE Transactions on  (Volume:15 ,  Issue: 8 )