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Worst-case bound analysis for the time-critical MAC behaviors of IEEE 802.15.4e

机译：IEEE 802.15.4e的时间关键MAC行为的最坏情况绑定分析

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With an advancement towards the paradigm of Internet of Things (IoT), in which every device will be interconnected and communicating with each other, the field of wireless sensor networks has helped to resolve an ever-growing demand in meeting deadlines and reducing power consumption. Among several standards that provide support for IoT, the recently published IEEE 802.15.4e protocol is specifically designed to meet the QoS requirements of industrial applications. IEEE 802.15.4e provides five Medium-Access Control (MAC) behaviors, including three that target time-critical applications: Deterministic and Synchronous Multichannel Extension (DSME); Time Slotted Channel Hopping (TSCH) and Low Latency Deterministic Network (LLDN). However, the standard and the literature do not provide any worst-case bound analysis of these behaviors, thus it is not possible to effectively predict their timing performance in an application and accurately devise a network in accordance to such constraints. This paper fills this gap by contributing network models for the three time-critical MAC behaviors using Network Calculus. These models allow deriving the worst-case performance of the MAC behaviors in terms of delay and buffering requirements. We then complement these results by carrying out a thorough performance analysis of these MAC behaviors by observing the impact of different parameters.
机译：随着对物联网（IOT）的范例中的进步，其中每一个装置将相互贯通，相互通信，无线传感器网络领域已帮助解决会议期限和降低功耗的不断增长的需求。在几种标准的提供物联网的支持，最近出版的IEEE 802.15.4e协议是专为满足工业应用的QoS要求。 IEEE 802.15.4e提供了五个介质访问控制（MAC）的行为，其中包括三个该目标时间关键的应用：确定性和同步多路扩展（DSME）;时间时隙信道跳频（TSCH）和低延迟的确定性网络（LLDN）。然而，标准并文献没有提供任何最坏情况下的这些行为的结合分析，因此不能够有效地预测其定时性能在应用程序中，准确地设计根据这样的约束的网络。本文填补了利用网络演算的三个时间关键的MAC行为造成网络模型这一差距。这些模型可以导出在延迟和缓冲的要求方面MAC行为的最坏情况下的性能。然后，我们通过观察不同参数的影响进行这些MAC行为进行彻底的性能分析补充这些结果。

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