Asymmetric Internet access over satellite-terrestrial networks
Asymmetric Internet access over satellite-terrestrial networks
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DOI：
10.2514/6.1996-1044
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发表时间：
1996-02
期刊：
影响因子：
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通讯作者：
Vivek Arora;Narin Suphasindhu;J. Baras;Douglas Dillon
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文献类型：
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作者：
Vivek Arora;Narin Suphasindhu;J. Baras;Douglas Dillon
DirecPC的Turbo Internet是一种低成本混合高速数字传输系统，它使用只接收的卫星链路进行下行数据传输，并使用现代速度的公共电话网络提供上行通信路径。提供的服务之一是基于非对称的TCP/IP协议的高速互联网接入。我们的主要目标是降低成本，高效地提供对互联网服务的高带宽访问，如文件传输、万维网和mbone。在最初的协议实施中，我们实现了比今天仅高速调制解调器的吞吐量高四倍的吞吐量。这一吞吐量可以进一步提高。本文提出了两种显著提高混合网络吞吐量的技术：TCP欺骗技术和选择性确认丢弃技术。我们的方法不需要对终端主机上的TCP/IP协议栈进行任何修改。本文提出的解决方案可用于改善其他带宽延迟积大和/或带宽返回路径少的混合网络的TCP/IP性能。(作者)
DirecPC's Turbo Internet is a low-cost hybrid high-speed digital transmission system which uses receive-only satellite links for downstream data delivery and public telephone networks at modern speeds to provide the upstream communications path. One of the services provided is high-speed Internet access based on an asymmetric TCP/IP protocol. Our principle objective is to lower cost and efficiently provide high bandwidth access to Internet services such as file transfer, the World Wide Web, and the MBONE. In the initial protocol implementation, we achieved four times higher throughput than that of today's high-speed modems alone. This throughput can be further enhanced. This paper presents two techniques, TCP spoofing and selective acknowledgment dropping, which significantly increase the overall throughput of the hybrid network. Our approach does not require any modification to the TCP/IP protocol stacks on the end hosts. The solutions proposed in this paper could be used to improve TCP/IP performance of other hybrid networks which have the disadvantage of high bandwidth-delay products and/or low bandwidth-return paths. (Author)