Mobility

Wireless Video Content Delivery Through Coded Distributed Caching

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Executive Summary

The authors suggest a novel approach to handle the ongoing explosive increase in the demand for video content in mobile devices. They envision femtocell-like base stations, which they call helpers, with weak backhaul links but large storage capabilities. These helpers form a wireless distributed caching network that assists the macro base station by handling requests of popular files that have been cached. They formalize the wireless distributed caching optimization problem for the case that files are encoded using fountain/MDS codes. They express the problem as a convex optimization.

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