在IEEE 802.15.4 DSME中，组确认是否有价值：比较分析
Are Group Acknowledgements Worth Anything in IEEE 802.15.4 DSME: A Comparative Analysis
摘要：
对于工业物联网中的数据汇集场景，无线通信提供了有线网络的经济高效且易于部署的替代方案。主要重点在于能源效率和可靠性，因为许多设备都是电池供电的。IEEE 802.15.4 DSME通过单独确认每个分组、对每个发送的分组施加开销以及增加能耗来增强可靠性。在干扰很小的网络中，聚合多个节点的数据片段并将其以压缩格式广播到邻域中的所有节点可能是有益的。IEEE 802.15.4 2012标准描述了这样的组确认方案，然而，该组确认方案在该标准的后续迭代中消失。本文比较了不同的组确认方案，并提出了一种新的组确认方案的目标是检查组确认是否构成一个可行的替代方案，定期确认在可靠的数据收集方案。我们的分析表明，除了少数情况下，GACK不构成一个有效的替代数据包的直接确认。
英文摘要：
For data collection scenarios in the Industrial Internet of Things, wireless communication provides a cost-effective and easy-to-deploy alternative to wired networks. The main focus lies on energy efficiency and reliability, as many devices are battery operated. IEEE 802.15.4 DSME enhances reliability by acknowledging each packet individually, imposing an overhead for each transmitted packet, and increasing energy consumption. In networks with little interference, it may be beneficial to aggregate the acknowledgments for multiple nodes and broadcast them in a compressed format to all nodes in the neighborhood. The IEEE 802.15.4 2012 standard describes such a group acknowledgment scheme which, however, disappears in later iterations of the standard. This paper compares different group acknowledgment schemes and proposes a novel group acknowledgment scheme with the goal to examine whether group acknowledgments constitute a viable alternative to regular acknowledgments in reliable data-collection scenarios. Our analysis suggests that apart from a few cases, GACKs do not constitute a valid alternative to the direct acknowledgement of data packets.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
