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Avoiding Local Interference in IEEE 802.15.4 TSCH Networks using a Scheduling Function with Distributed Blacklists

机译：使用具有分布式黑名单的调度函数避免IEEE 802.15.4 TSCH网络的本地干扰

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摘要

To mitigate interference in Wireless Sensor Networks (WSNs), the IEEE 802.15.4 Time Slotted Channel Hopping (TSCH) mode offers Time Division Multiple Access (TDMA) in combination with channel hopping. While this is a simple, yet powerful mechanism, it leaves room for improvement at the face of recurrent or broad-band interference. In this paper, we propose a scheduling function called Scheduling Function with Soft Blacklisting (SFSB), which utilizes the 6top sublayer. By that, it integrates into the 6TiSCH stack as specified by the respective Working Group of the Internet Engineering Task Force (IETF). SFSB mitigates interference by sensing the spectrum for interference and locally blacklisting channels to be found under interference from other co-located networks. Blacklists are shared among 1-hop neighbors and are used to suspend communication or divert to a non-disturbed channel. By leveraging existing standards, the deployment in WSNs is simplified and interoperability is ensured. We evaluate our proposal through simulations. First results suggest that the localized interference mitigation has an advantage when nodes are subject to heavy interference.
机译：为了减轻无线传感器网络（WSN）中的干扰，IEEE 802.15.4时间槽通道跳跃（TSCH）模式提供与信道跳跃结合的时分多址（TDMA）。虽然这是一种简单而且强大的机制，但它留下了经常性或宽带干扰的面孔的改进空间。在本文中，我们提出了一种调度函数，称为调度函数，具有软盘（SFSB），它利用6top子层。由此，它集成到由Internet工程任务组（IETF）的相应工作组指定的6TISCH堆栈中。 SFSB通过感测干扰和局部黑名单通道的频谱来减轻干扰，以便在与其他共同网络的干扰下发现。黑名单在1跳邻居之间共享，用于暂停通信或转移到非受干扰的频道。通过利用现有标准，简化了WSN中的部署，并确保了互操作性。我们通过模拟评估我们的提案。第一结果表明，当节点受到严重干扰时，局部干扰减轻具有优势。

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