arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2112.12971cs.ITmath.IT
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用随机几何分析蜂窝网络中的时延分布

Analysis of the Delay Distribution in Cellular Networks by Using Stochastic Geometry

Fadil Habibi Danufane, Marco Di Renzo

摘要:

在本文中,借助于随机几何的数学工具,我们介绍了三种不同定义的延迟,即,在大规模蜂窝网络中,用户成功接收数据分组所花费的时间。我们还提供了一个渐近分析的延迟分布,它可以被看作是一个给定的网络的数据包丢失概率。为了减轻在某些情况下所获得的解析公式的固有计算困难,我们提出了有效的数值近似的基础上的数值反演方法,黎曼和,Beta分布。最后,我们证明了所获得的解析公式和相应的近似对蒙特卡洛模拟结果的准确性,并揭示了延迟性能的见解与几个设计参数,如解码阈值,发射功率,和部署密度的基站。所提出的方法可以促进蜂窝网络的分析和优化,所述蜂窝网络受到对网络分组延迟的可靠性约束,所述网络分组延迟不限于本地(平均)延迟,例如,在延迟敏感应用的上下文中。

英文摘要:

In this paper, with the aid of the mathematical tool of stochastic geometry, we introduce analytical and computational frameworks for the distribution of three different definitions of delay, i.e., the time that it takes for a user to successfully receive a data packet, in large-scale cellular networks. We also provide an asymptotic analysis of one of the delay distributions, which can be regarded as the packet loss probability of a given network. To mitigate the inherent computational difficulties of the obtained analytical formulations in some cases, we propose efficient numerical approximations based on the numerical inversion method, the Riemann sum, and the Beta distribution. Finally, we demonstrate the accuracy of the obtained analytical formulations and the corresponding approximations against Monte Carlo simulation results, and unveil insights on the delay performance with respect to several design parameters, such as the decoding threshold, the transmit power, and the deployment density of the base stations. The proposed methods can facilitate the analysis and optimization of cellular networks subject to reliability constraints on the network packet delay that are not restricted to the local (average) delay, e.g., in the context of delay sensitive applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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