Abstract

A video distribution architecture with edge stations and Wi-Fi delivery networks as connection to residential homes is described in this paper. An edge station is configurable and controllable by a central server. It is placed in the access point of Wi-Fi networks and has multiple usages. Due to its large storage space it can be used as a mirroring/caching proxy for continuous media. Replicating popular video contents in many small mirroring sites can significantly reduce the network bandwidth requirement. When this structure is used with a cable or hybrid fiber/coax (HFC) network, it turns to be a hybrid fiber/coaxAVi-Fi (HFCW) structure, particularly suitable for video-on-demand (VoD) applications. There are many advantages of this architecture. First, the central server load and network traffic can be reduced to a small percentage. Second, the response time of most video playing requests can be significantly reduced. Third, true VoD can possibly be provided with a one-way cable system. Finally, noise from STBs (set-top boxes) is absorbed by the edge station in a two-way cable system.

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