We present a new architecture to handle the ongoing explosive increase in thedemand for video content in wireless networks. It is based on distributedcaching of the content in femto-basestations with small or non-existingbackhaul capacity but with considerable storage space, called helper nodes. Wealso consider using the mobile terminals themselves as caching helpers, whichcan distribute video through device-to-device communications. This approachallows an improvement in the video throughput without deployment of anyadditional infrastructure. The new architecture can improve video throughput byone to two orders-of-magnitude.
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