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首页> 外文期刊>International Journal of Distributed and Parallel Systems >Enhancement of TCP Performance with the Help of Snoop Protocol in Wired CUM Wireless Network
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Enhancement of TCP Performance with the Help of Snoop Protocol in Wired CUM Wireless Network

机译：借助有线CUM无线网络中的Snoop协议增强TCP性能

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摘要

The TCP networks have been the only communication for wired media that followed IEEE 802.3 networks. This paper attempts to provide a comprehensive overview of this Link Layer approach i.e. Snoop protocol that improving throughput of TCP in wireless networks. It first explains the role of Snoop protocol that overcomes the limitations of TCP protocols in wireless media. We investigated the application of this protocol in wireless networks and observed that a single hop in the wireless network experienced large variations in round trip time in a very short period. Without changes to the Snoop protocol to accommodate these dramatic RTT variations, Snoop was performing badly compared with regular TCP even when there were no packet losses or errors. The main cause for this is premature retransmissions performed by Snoop. We have modified the Snoop protocol to avoid these unnecessary retransmissions by having a higher local retransmission timeout. The results showed us that Snoop benefits from this approach which has made a significant performance improvement over regular TCP in multihop wired cum wireless networks.
机译：TCP网络是继IEEE 802.3网络之后的唯一有线媒体通信。本文试图提供这种链路层方法的全面概述，即Snoop协议，该协议可提高无线网络中TCP的吞吐量。首先说明了Snoop协议的作用，它克服了无线媒体中TCP协议的局限性。我们研究了该协议在无线网络中的应用，并观察到无线网络中的单跳在很短的时间内往返时间会有很大变化。如果不对Snoop协议进行更改以适应这些巨大的RTT变化，即使没有数据包丢失或错误，Snoop的性能也比常规TCP差。造成这种情况的主要原因是Snoop执行的过早重传。我们已经修改了Snoop协议，以通过具有更高的本地重传超时来避免这些不必要的重传。结果表明，Snoop受益于这种方法，该方法在多跳有线和无线网络中的常规TCP性能有了显着提高。

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