Local,Regional and Large Scale Integrated Networks. Volume 2. Recent Advances in Ground Packet Radio Systems.

摘要

This technical report presents significant accomplishments in the development of computational techniques for network analysis and design, and the following cost/performance tradeoffs for data and computer communication networks: cost-effectiveness and economies of scale previously demonstrated for medium size packet switching networks (e.g., ARPANET) extend to large scale networks (e.g., 10 Mbs throughput). The most cost-effective architecture for large scale networks is a multi-level hierarchical structure. The cost of hierarchical networks is not very sensititive to number of backbone nodes near the optimum; the local access cost is approximately 50% of the total, and is the most sensitive component. For AUTODIN II, Phase I, the minimum cost backbone network configuration is a hybrid terrestrial-satellite net with six (out of eight nodes) ground stations, resulting in 25% savings in backbone line cost compared to a terrestrial net only. (Author)