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Video-Aware Scheduling and Caching in the Radio Access Network by Hasti Ahlehagh; Sujit Dey is a Computer Science article available to read on EtoBox.

What is Video-Aware Scheduling and Caching in the Radio Access Network about?

In this paper, we introduce distributed caching of videos at the base stations of the Radio Access Network (RAN) to significantly improve the video capacity and user experience of mobile networks. To ensure effectiveness of the massively distributed but relatively small-sized RAN caches, unlike Internet content delivery networks (CDNs) that can store millions of videos in a relatively few large-sized caches, we propose RAN-aware reactive and proactive caching policies that utilize User Preference Profiles (UPPs) of active users in a cell. Furthermore, we propose video-aware backhaul and wireless channel scheduling techniques that, in conjunction with edge caching, ensure maximizing the number of concurrent video sessions that can be supported by the end-to-end network while satisfying their initial delay requirements and minimize stalling. To evaluate our proposed techniques, we developed a statistical simulation framework using MATLAB and performed extensive simulations under various cache sizes, video popularity and UPP distributions, user dynamics, and wireless channel conditions. Our simulation results show that RAN caches using UPP-based caching policies, together with video-a

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Author

Hasti Ahlehagh; Sujit Dey

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Published

2014

Language

EN

Field

Computer Science (Physical Sciences)