Performance Evaluation for Saturated 802.16 Networks with Binary Backoff Mechanism

H. Vu, Sammy Chan
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Abstract

We propose in this paper an analytical model to evaluate the average packet delay and its standard deviation in a saturated IEEE 802.16 network with the binary exponential backoff mechanism. In particular, we develop a simple fixed point analysis to approximate the probability that a bandwidth request is unsuccessful in such a network. A closed form expression for the mean and standard deviation of the delay are then derived from the model as a function of the system parameters. The accuracy of the analytical model is evaluated by comparing with simulation results over a wide range of operating conditions.
具有二进制退退机制的饱和802.16网络性能评估
本文提出了一种基于二进制指数回退机制的饱和IEEE 802.16网络平均分组延迟及其标准差的分析模型。特别是,我们开发了一个简单的不动点分析来估计在这种网络中带宽请求不成功的概率。然后,从模型中导出了时滞的均值和标准差作为系统参数的函数的封闭形式表达式。分析模型的准确性是通过比较在广泛的操作条件下的模拟结果来评估的。
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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