错误信道下非饱和IEEE 802.11 DCF性能分析的扩展模型

P. Latkoski, Z. Hadzi-Velkov, B. Popovski
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引用次数: 12

摘要

在本文中,我们提供了一个扩展模型,用于分析IEEE 802.11 WLAN,该模型适用于网络的非饱和运行,每个站点的(重新)传输尝试次数有限以及无线信道中的错误条件。该模型建立在现有的基于马尔可夫链的空间站后退计数器模型的基础上,并被证明比原来的模型更真实。我们导出了一个广义的站点传输概率表达式,这对于确定系统的所有性能指标至关重要。我们还给出了一组以前未发表的吞吐量、丢弃概率和碰撞概率在重试限制和包错误率函数中的性能结果
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Extended Model for Performance Analysis of Non-Saturated IEEE 802.11 DCF in Erroneous Channel
In this paper, we provide an extended model for analytical analysis of an IEEE 802.11 WLAN that accommodates the non-saturated operation of the network, the finite number of (re)transmission attempts for each station and the erroneous conditions in the wireless channel. This model builds on top of an existing Markov chain-based models for the station's backoff counter and proves to be more realistic that the original ones. We derive a generalized expression for the station's transmission probability, which is essential for determination of all system's performance measures. We also present a set of previously unpublished performance results for the throughput, the discard probability and the collision probability in function of the retry limit and the packet error rate
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