论文标题
BDPC：控制物联网的6Tisch网络中的应用程序延迟
BDPC: Controlling Application Delay in 6TiSCH networks for the Industrial Internet of Things
论文作者
论文摘要
无线工业互联网系统（IoT）系统的基本要求之一是具有极高的数据包输送率，通常超过99.9％，并遵守实时截止日期限制。在工业物联网网络中，截止日期后到达的数据包成为数据包损失的一部分，并在迟到时失去了意义。但是，当前可用的自我IOT建议旨在最大程度地减少端到端延迟，而无需考虑同时实时和可靠性约束。在本文中，我们提出了一种称为BDPC（有限延迟数据包控制）的新机制，以应对这一挑战。 BDPC将节点的流量延迟到目的地（root）的知识与遍历工业物联网网络的数据包的时间预算，以分配网络资源，以使用自适应和分布式算法遵守系统的最大延迟要求。与最终端到端延迟的一般目标不同，我们建议数据包必须在截止日期之前到达，但不会更快。例如，我们的结果表明，通过使用BDPC，与使用默认的最小调度函数相比，在截止日期之前到达截止日期之前的数据包数量可以提高2.6倍以上。为了进一步的优势，BDPC涉及对6Tisch协议堆栈的微小修改，这使其与当前的实现兼容。
One of the essential requirements of wireless industrial Internet of Things (IoT) systems is to have an extremely high packet delivery rate, generally over 99.9% and comply wih realtime deadline constraints. In industrial IoT networks, packets arriving after the deadline become part of packet loss and lose meaning when they arrive late. However, currently available industial IoT proposals aim to minimize End-to-End delay without taking into account simultaneous realtime and reliability constraints. In this paper, we propose a new mechanism, called BDPC (Bounded Delay Packet Control) to tackle this challenge. BDPC combines the knowledge of a node's traffic delay to the destination (root) with the time budget of a data packet traversing the industrial IoT network, to allocate network resources to comply the system maximum delay requirements using an adaptive and distributed algorithm. Unlike the general aim to minimze end-to-end delay, we propose that data packets must arrive before the deadline, but not faster. Our results show, for example, that by using BDPC, the number of packets arriving before the deadline can be improved more than 2.6 times compared to the case when using the default Minimal Scheduling Function from the standard. As a further advantage, BDPC involves minor modifications to the 6TiSCH protocol stack, which makes it compatible with current implementations.
