The use of Residential Gateways in Content Delivery Networking
نویسندگان
چکیده
We have investigated and compared various aspects of the storage of multimedia content at residential gateways (RG) in the home or at caches in the public network. From qualitative analyses of Personal Video Recording and Content Delivery Networking techniques, we conclude that service architectures incorporating storage on the RG as well as in the public network are viable options for the near future. We developed a performance model that calculates the availability of required bandwidth as a function of link bandwidths, cache sizes, access data rates, the number of users, the number of simultaneously multicast video streams, and various parameters that characterize content viewing and browsing behavior. The model is based on a realistic caching hierarchy, and is implemented in a tool that forms an excellent basis for the development of a Decision Support System for planning access networks in the context of rapidly evolving RG technology.
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