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本文叙述和分析了一种传输媒介——甚小口径终端(VSAT)卫星网络,它在远距离个人计算机(PC)通信中,正在起着重要的作用。成熟和实用的 YSAT 技术提供了许多超过通常地面网络的好处和优点:包括较低的成本,容易安装和维修,支持多种业务,可将租借线路费用很高的地方引入通信环路,以及将大量的 VSAT 集中到一个单一的网络以提供一个从小系统到大系统的低成本有效的扩充。本文包括了网络的下述几个方面内容:网络结构,网络工作和多址,差错控制协议和端到端的性能分析。
This article describes and analyzes a transmission medium, the VSAT satellite network, which is playing an important role in long-distance personal computer (PC) communications. The proven and practical YSAT technology offers many benefits and benefits over conventional landline networks: lower costs, easy installation and maintenance, support for multiple services, introduction of communication loops where leased lines are expensive, A large number of VSATs converge into a single network to provide a cost effective expansion from a small system to a large system. This article includes the following aspects of the network: network structure, network work and multiple access, error control protocol and end-to-end performance analysis.