Homeplug MAC性能分析的有效性研究
On Efficiency and Validity of Previous Homeplug MAC Performance Analysis
摘要：
电力线通信网络的媒体访问控制协议（定义在Homeplug和IEEE 1901标准中）已经得到了研究界相对适度的关注。因此，只有一个分析模型符合标准化的MAC程序，并考虑非饱和条件。我们确定了现有的分析模型的两个重要的限制：高计算费用和预测结果之前的预测饱和点不对应于长期的网络性能。在这项工作中，我们提出了一个简化的先前定义的分析模型的Homeplug MAC能够大大降低其复杂性，并证明了先前的性能结果之前预测的饱和对应于一个短暂的阶段。我们确定，以前的错误预测的原因是常见的分析假设和一个过渡阶段的潜在发生，我们表明在某些情况下是非常长的持续时间。我们还提供技术，分析和实验，正确预测长期行为和分析的影响，具体Homeplug/IEEE 1901功能的误预测误差的大小。
英文摘要：
The Medium Access Control protocol of Power Line Communication networks (defined in Homeplug and IEEE 1901 standards) has received relatively modest attention from the research community. As a consequence, there is only one analytic model that complies with the standardised MAC procedures and considers unsaturated conditions. We identify two important limitations of the existing analytic model: high computational expense and predicted results just prior to the predicted saturation point do not correspond to long-term network performance. In this work, we present a simplification of the previously defined analytic model of Homeplug MAC able to substantially reduce its complexity and demonstrate that the previous performance results just before predicted saturation correspond to a transitory phase. We determine that the causes of previous misprediction are common analytical assumptions and the potential occurrence of a transitory phase, that we show to be of extremely long duration under certain circumstances. We also provide techniques, both analytical and experimental, to correctly predict long-term behaviour and analyse the effect of specific Homeplug/IEEE 1901 features on the magnitude of misprediction errors.
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