基于IEEE 802.11 EDCF的无线局域网实时应用的QoS评估

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI:10.1109/ICCITECHNOL.2011.5762689

R. Qashi, Martin Bogdan, K. Hanssgen

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引用次数: 11

摘要

在IEEE 802.11无线局域网(WLAN)协议和介质访问控制(MAC)功能(提供所需的服务质量、高吞吐量和最小延迟)中都存在真正的挑战。IEEE 802.11层既支持分布式协调功能(DCF)，也支持增强的分布式协调功能(EDCF)。EDCF内的不同接入类别(AC)可以提高WLAN的质量。在目前的工作中，研究了两种情况;两者都使用物理层(PHY)和MAC层的相同参数。与DCF相比，我们的结果表明，EDCF为实时应用(例如音频和视频流)提供了显著的增强。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Evaluating the QoS of WLANs for the IEEE 802.11 EDCF in real-time applications

There are real challenges in both the IEEE 802.11 wireless local area network (WLAN) protocol and the medium access control (MAC)-functions providing the required quality-of-service, high throughput and minimum latencies. The IEEE 802.11 layer supports both the distributed coordination function (DCF) and the enhanced DCF (EDCF). The different access categories (AC) within the EDCF can enhance the quality of WLAN. In the current work, two scenarios are investigated; both use the same parameters from the physical (PHY) and MAC layers. In comparison to the DCF, our results show that EDCF offers a significant enhancement for real-time applications (e.g. audio- and video-streaming).

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2011 International Conference on Communications and Information Technology (ICCIT)

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