论文标题

5G-mmwave网络中的调度绩效评估在人类障碍下

Performance Evaluation of Scheduling in 5G-mmWave Networks under Human Blockage

论文作者

Firyaguna, Fadhil, Bonfante, Andrea, Kibiłda, Jacek, Marchetti, Nicola

论文摘要

毫米波频谱规定对5G网络的可实现数据速率的巨大提高。但是,如果不考虑适当的资源分配,影响毫米波信号的人体阻塞会严重降低性能。在本文中,我们评估了常规调度程序(例如比例公平调度程序)如何应对阻塞的存在。我们的结果表明,资源分配可能会使用户遭受阻塞的困扰,从而导致这些用户的数据速率较低。为了避免此问题,我们表明可以通过使用适应即将发生的阻塞事件做出反应的调度程序来提高这些用户的数据速率。改编的调度程序旨在在堵塞发生之前积极分配资源,从而减轻损失。在动态的人类阻塞场景中,毫米毫米波信号的阻塞预测的最新预测进展是为了激发这种适应性的动机。我们的广泛模拟表明,当阻塞条件严重时,相对于比例公平调度程序的第一个百分位数和公平性的收益。

The millimetre-wave spectrum provisions enormous enhancement to the achievable data rate of 5G networks. However, human blockages affecting the millimetre-wave signal can severely degrade the performance if proper resource allocation is not considered. In this paper, we assess how conventional schedulers, such as the Proportional Fair scheduler, react to the presence of blockage. Our results show that the resource allocation may disfavour users suffering from blockage, leading to low data rate for those users. To circumvent this problem, we show that the data rate of those users can be improved by using a scheduler adapted to react to upcoming blockage events. The adapted scheduler aims at proactively allocating the resources before a blockage happens, mitigating losses. Such adaptation is motivated by recent progress in blockage prediction for millimetre-wave signals in a dynamic human blockage scenario. Our extensive simulations indicate gains in the 1st percentile rate and fairness with respect to Proportional Fair scheduler when blockage conditions are severe.

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