End-to-end throughput analysis for IEEE 802.11e EDCA string-topology wireless multi-hop networks
End-to-end throughput analysis for IEEE 802.11e EDCA string-topology wireless multi-hop networks
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DOI：
10.1587/nolta.6.410
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Yuta Shimoyamada;K. Sanada;N. Komuro;H. Sekiya
中科院分区：
文献类型：
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作者：
Yuta Shimoyamada;K. Sanada;N. Komuro;H. Sekiya
提出了IEEE 802.11e增强型分布式信道接入（EDCA）无线串拓扑多跳网络端到端吞吐量的解析表达式。为了获得IEEE 802.11e EDCA的性能，将节点内AC之间的内部冲突、与外部节点的帧冲突以及每个AC上缓冲区存在帧的概率表示为EDCA接入参数的函数。因此，可以获得EDCA接入参数对EDCA中服务质量（QoS）支持的影响。由于缓冲状态可以根据AC来表示，因此可以在任何提供的负载上获得与每个AC相关的端到端吞吐量。通过与仿真结果的定量吻合，验证了所得解析表达式的正确性。
This paper proposes analytical expressions of end-to-end throughput for IEEE 802.11e Enhanced Distributed Channel Access (EDCA) wireless string-topology multi-hop net- works. For obtaining the IEEE 802.11e EDCA performance, internal collisions between Access Categories (ACs) in a node, frame collisions with external nodes, and frame-existence probabil- ities of buffers at each AC are expressed as functions of EDCA access parameters. Therefore, it is possible to obtain the effects of the EDCA access parameters to Quality of Service (QoS) support in the EDCA. It is possible to obtain the end-to-end throughput at any offered load with respect to each AC because the buffer states can be expressed according to ACs. The obtained analytical expressions are verified by showing the quantitative agreements with sim- ulation results.