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When TCP and Network Coding meet Wireless Links

机译:当TCP和网络编码遇到无线链接时

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In this paper we study the network performance when a combination of TCP and Network Coding techniques is used over wireless links. The poor behavior of TCP over lossy channels is well-known, especially when these links exhibit a bursty behavior (i.e. errors tend to happen in bursts), as it is the case for indoor scenarios. In the paper we exploit the Kodo Network Coding implementation and we integrate it with the TCP protocol within the ns-3 framework. We carry out an extensive simulation campaign over IEEE 802.11 links and the results show that Network Coding can effectively hide the impairments of the wireless channels. Although this could be also achieved by the IEEE 802.11 MAC retransmission scheme for memoryless channels, when a bursty model is used, the results yield that Network Coding is able to offer a much better performance.
机译:在本文中,我们在通过无线链路上使用TCP和网络编码技术的组合时,研究网络性能。 TCP对损耗通道的不良行为是众所周知的,特别是当这些链路表现出突发行为时(即,错误倾向于发生在爆发中),就像室内情景一样。在论文中,我们利用了Kodo网络编码实现,并将其与NS-3框架内的TCP协议集成在一起。我们通过IEEE 802.11链路进行广泛的仿真活动,结果表明,网络编码可以有效地隐藏无线通道的损伤。尽管当使用突发模型时,IEEE 802.11 MAC重传方案也可以通过IEEE 802.11 MAC重传方案实现。网络编码能够提供更好的性能的结果。

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