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首页> 外文会议>2012 IEEE Latin-American Conference on Communications >TCP-UEM: Detecting link failure by keeping end-to-end semantics
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TCP-UEM: Detecting link failure by keeping end-to-end semantics

机译：TCP-UEM：通过保留端到端语义来检测链接故障

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摘要

The evolution of computer networks has happened, in most cases, on the wired networks. However, the appearance of the wireless network, called “revolution wireless”, brought some challenges. The use of the technologies belonging to the wired networks on wireless networks is not appropriate. Some challenges are in the transport layer, in which are TCP and UDP. These protocols evolved to answer problems mainly found in wired networks. The use of the TCP and its mechanism to avoid congestion on wireless networks introduce important problems, such as, misinterpretation of route failures as congestion, misinterpretation of link errors as congestion, inefficiency when dealing with contention both internal and external to the node, inefficiency caused by spurious retransmission, poor conservation of energy of the node, among others. Many solutions have been investigated and most of them change the original TCP to solve one or more problems, but not all. Others solutions try to solve the problems designing a new protocol. In this paper we present a new TCP variant, called TCP-UEM, which aims at detecting link failures while maintaining the end-to-end semantic of the original TCP in order to avoid the congestion mechanism to be erroneously executed. Some of the simulations carried out to evaluate TCP-UEM are described as well as the statistical analysis of the results.
机译：在大多数情况下，计算机网络的发展已经发生在有线网络上。但是，称为“革命无线”的无线网络的出现带来了一些挑战。在无线网络上使用属于有线网络的技术是不合适的。在传输层中存在一些挑战，其中包括TCP和UDP。这些协议演变为主要解决有线网络中存在的问题。使用TCP及其机制来避免无线网络上的拥塞会带来重要的问题，例如，将路由故障误解为拥塞，将链路错误误解为拥塞，在处理节点内部和外部的争用时效率低下，导致效率低下由于虚假重传，节点能量守恒不佳等。已经研究了许多解决方案，其中大多数更改原始TCP来解决一个或多个问题，但不是全部。其他解决方案试图解决设计新协议的问题。在本文中，我们提出了一个称为TCP-UEM的新TCP变体，其目的是在检测链接故障的同时保持原始TCP的端到端语义，以避免拥塞机制被错误执行。描述了一些用于评估TCP-UEM的仿真以及结果的统计分析。

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