publication . Conference object . 2012

Wireless video content delivery through coded distributed caching

Negin Golrezaei; Karthikeyan Shanmugam; Alexandros G. Dimakis; Andreas F. Molisch; Giuseppe Caire;
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  • Published: 04 Dec 2012
  • Publisher: IEEE
Abstract
We suggest a novel approach to handle the ongoing explosive increase in the demand for video content in mobile devices. We envision femtocell-like base stations, which we 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. We formalize the wireless distributed caching optimization problem for the case that files are encoded using fountain/MDS codes. We express the problem as a convex optimization. By adding additional variables we reduce it to a linear program. On the practical side, we pres...
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