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On the Benefit of Forward Error Correction at IEEE 802.11 Link Layer Level

机译：关于IEEE 802.11链路层级别的前向纠错的好处

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This study examines the error distribution of aggregated MPDUs in 802.1 In networks and whether or not forward error correction like raptor coding at the link layer would be useful in these networks. Several experiments with Qualcomm 4x4 802.1 In hardware were performed. Two devices were used in a data link, while a third device sniffed all transmitted packets. The collected data was analyzed and used to calculate the packet error rate which would be obtained if FEC was used in order to determine whether FEC is useful at the link layer. It is shown that the error distribution of A-MPDUs does not follow the binomial distribution. Because of this, the performance of FEC in real networks is worse than for theoretical cases where a binomial distribution is assumed. Therefore, other ways to decrease the packet error rate have more impact than forward error correction.

机译：这项研究检查了802.1 M网络中聚合MPDU的错误分布，以及在链路层是否使用像猛禽编码这样的前向纠错在这些网络中是否有用。使用Qualcomm 4x4 802.1 In硬件进行了几次实验。数据链路中使用了两个设备，而第三个设备则嗅探所有传输的数据包。分析所收集的数据并用于计算分组错误率，如果使用FEC可以确定该错误率，以便确定FEC在链路层是否有用。结果表明，A-MPDU的错误分布不遵循二项式分布。因此，与假定二项式分布的理论情况相比，实际网络中的FEC性能更差。因此，其他降低分组错误率的方法比前向纠错具有更大的影响。

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来源
《Energy-aware communications》|2011年|p.9-20|共12页
会议地点 Dresden(DE);Dresden(DE)
作者
Floris van Nee; Pieter-Tjerk de Boer;
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作者单位

Centre for Telematics and Information Technology (CTIT) Faculty of Electrical Engineering, Mathematics and Computer Science University of Twente, Enschede, The Netherlands;

Centre for Telematics and Information Technology (CTIT) Faculty of Electrical Engineering, Mathematics and Computer Science University of Twente, Enschede, The Netherlands;

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正文语种 eng
中图分类通信;计算机网络;
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On the Benefit of Forward Error Correction at IEEE 802.11 Link Layer Level

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