Modelling and Performance Evaluation of High Speed SatelliteConnected Local Networks

这个项目处理的是一个具有巨大潜在兴趣的通信系统问题。随着相对便宜的卫星地面站变得越来越普遍，有效地将这些地面站连接到地面局域网是至关重要的。已经开发了几种卫星互连网络体系结构；然而，在这些体系结构中，没有任何规定用于处理卫星链路拥塞。链路拥塞是指网关以超过局域网输出的速率从链路接收输入流量。本文主要研究拥塞问题及其对网络性能的影响。具体地说，研究人员将开发排队网络性能模型，开发网络行为模拟模型，调查和比较各种网络协议的拥塞影响，并评估当前网络体系结构的性能。

This project deals with a communication systems problem which has great potential interest. As relatively inexpensive satellite earth stations become more universally available, it is crucial to efficiently couple these stations to terrestrial local area networks. Several satellite interconnection network architectures have been developed; however, in none of these architectures is any provision made for dealing with satellite link congestion. Link congestion refers to a gateway receiving input traffic from the link at a rate exceeding the output to the local area network. This research focuses on the congestion problem and its effect on performance. Specifically, researchers will develop queueing network performance models, develop simulation models of network behavior, investigate and compare the congestion effect of various network protocols, and evaluate the performance of current network architectures.