论文标题

设置标准:用于有效测量触觉互联网的定量指标

Setting the Yardstick: A Quantitative Metric for Effectively Measuring Tactile Internet

论文作者

Verburg, J. P., Kroep, H. J. C., Gokhale, V., Prasad, R. Venkatesha, Rao, V.

论文摘要

通信的下一个前沿是远程操作和控制遥控环境的控制。与传统的网络应用程序相比,远距离运行的需求很大,超低潜伏期(ULL)是主要的。 Teleperation以及其他需要ULL通信的其他应用程序被称为触觉互联网(TI)。对于实现TI应用程序,必须重新设计常规网络技术。此外,只有在有意义的性能指标可用时才能评估这些进步。但是,现有的TI性能指标严重缺乏全面表征Ti性能。在本文中,我们迈出了弥合这一差距的第一步。为此,我们提出了一种在延迟和精确度方面捕获Ti良好性能的方法。我们将动态的时间扭曲(DTW)作为我们工作的基础,并确定它是否足以表征TI系统。我们通过开发一个称为有效的时间和价值偏移(ETV)的框架来完善DTW,该框架在Ti的输入和输出信号之间提取细粒度的时间和值偏移。使用ETVO,我们提出了两个定量指标,用于Ti-有效延迟衍生(EDD)和有效的均方根误差。通过对现实的TI设置进行的严格实验,我们证明了所提出的指标可以精确表征Ti相互作用的潜力。

The next frontier in communications is teleoperation -- manipulation and control of remote environments. Compared to conventional networked applications, teleoperation poses widely different requirements, ultra-low latency (ULL) being the primary one. Teleoperation, along with a host of other applications requiring ULL communication, is termed as Tactile Internet (TI). A significant redesign of conventional networking techniques is necessary to realize TI applications. Further, these advancements can be evaluated only when meaningful performance metrics are available. However, existing TI performance metrics fall severely short of comprehensively characterizing TI performance. In this paper, we take the first step towards bridging this gap. To this end, we propose a method that captures the fine-grained performance of TI in terms of delay and precision. We take Dynamic Time Warping (DTW) as the basis of our work and identify whether it is sufficient in characterizing TI systems. We refine DTW by developing a framework called Effective Time- and Value-Offset (ETVO) that extracts fine-grained time and value offsets between input and output signals of TI. Using ETVO, we present two quantitative metrics for TI -- Effective Delay-Derivative (EDD) and Effective Root Mean Square Error. Through rigorous experiments conducted on a realistic TI setup, we demonstrate the potential of the proposed metrics to precisely characterize TI interactions.

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