A Multi-Level, Multicast Web Caching System for Interconnected LMDS Networks
Abstract:
In this paper, the software architecture of a distributed system, which has been successfully implemented and which supports on-line and off-line interactive multimedia services, is presented. It relies on a configuration using a broadband forward channel (usually based on DVB/MPEG-2) and a separate, usually narrowband, return channel. In the proposed Embrace architecture, forward and return link are provided by a broadband fixed wireless access system. The design of the Intelligent Multicast Push and Proxy System (IMPPS) is presented. After an introduction to web caching, a fully distributed multi-level, multicast web caching system is discussed. IMPPS improves standard web caching by improving scalability due to multicast, and with a variety of new functions, such as client management, virtual group management, and multicast HTTP streaming support. I.
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