论文标题
Bluetisch：低功率6Tisch IoT网络的多phy模拟
BlueTiSCH: A Multi-PHY Simulation of Low-Power 6TiSCH IoT Networks
论文作者
论文摘要
传统上，低功率无线物联网网络在单个物理层（PHY）上运行 - 许多基于IEEE 802.15.4标准。但是，最近的低功率无线芯片组均提供IEEE 802.15.4和蓝牙5（BT 5）标准的所有四个物理。这引入了一种有趣的可能性，即IoT解决方案不一定受单个PHY的限制，并且可以根据RF或网络条件（例如，提供更高的吞吐量或更长的无线电范围）积极或主动地适应其PHY。最近的一些研究探索了此类用例。但是，这些研究缺乏对可扩展性和射频（RF）环境的各种指标（例如可靠性，潜伏期和能量）的全面评估。在这项工作中，我们评估了IEEE 802.15.4的性能和最近完成的IETF 6Tisch低功率无线标准的四个BT 5 2.4GHz PHY选项。据我们所知，这是第一项直接在相同的环境中直接比较这些物理的工作。具体来说，我们使用最近发布的6Tisch模拟器TSCH-SIM来比较不同RF环境（家庭，工业和室外）的网络中这些PHY选项，并从这些结果中强调了这些结果如何更好地适合于特定的应用程序用途。
Low-power wireless IoT networks have traditionally operated over a single physical layer (PHY) -- many based on the IEEE 802.15.4 standard. However, recent low-power wireless chipsets offer both the IEEE 802.15.4 and all four PHYs of the Bluetooth 5 (BT 5) standard. This introduces the intriguing possibility that IoT solutions might not necessarily be bound by the limits of a single PHY, and could actively or proactively adapt their PHY depending on RF or networking conditions (e.g., to offer a higher throughput or a longer radio range). Several recent studies have explored such use-cases. However, these studies lack comprehensive evaluation over various metrics (such as reliability, latency, and energy) with regards to scalability and the Radio Frequency (RF) environment. In this work we evaluate the performance of IEEE 802.15.4 and the four BT 5 2.4GHz PHY options for the recently completed IETF 6TiSCH low-power wireless standard. To the best of our knowledge, this is the first work to directly compare these PHYs in identical settings. Specifically, we use a recently released 6TiSCH simulator, TSCH-Sim, to compare these PHY options in networks of up to 250 nodes over different RF environments (home, industrial, and outdoor), and highlight from these results how different PHY options might be better suited to particular application use-cases.
