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arXiv 2112.09403cs.NI
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WIP:为LoRa开发DSME MAC--系统集成与首次评估

WIP: Exploring DSME MAC for LoRa -- A System Integration and First Evaluation

José Álamos, Peter Kietzmann, Thomas C. Schmidt, Matthias Wählisch

摘要:

LoRa是一种流行的无线技术,能够以低能耗(mW)实现低吞吐量(字节)长距离通信(km)。然而,它的传输一方面在长时间的广播期间容易受到干扰,另一方面受到占空比的限制。LoRaWAN在LoRa之上定义了一个MAC和一个垂直堆栈。LoRaWAN通过采用集中式网络架构来规避上述限制,这大大降低了下行链路容量并阻止了点对点通信。这使得它无法用于许多部署。IEEE 802.15.4e的确定性和同步多信道扩展(DSME)受益于时隙通信和对等通信,并且具有克服LoRaWAN限制的潜力。在这项工作中,我们在开源物联网操作系统RIOT中的LoRa之上实现了DSME,并为在真实硬件上进行首次评估实验打开了大门。初步结果表明,DSME-LoRa不仅可以为受限的物联网设备提供可靠的点对点通信,还可以随着节点数量的增加而扩展。

英文摘要:

LoRa is a popular wireless technology that enables low-throughput (bytes) long-range communication (km) at low energy consumption (mW). Its transmission, though, is on one side prone to interference during long on-air times, and on the other side subject to duty cycle restrictions. LoRaWAN defines a MAC and a vertical stack on top of LoRa. LoRaWAN circumvents the above limitations by imposing a centralized network architecture, which heavily reduces downlink capacity and prevents peer-to-peer communication. This makes it unusable for many deployments. The Deterministic and Synchronous Multichannel Extension (DSME) of IEEE 802.15.4e benefits of time-slotted communication and peer-to-peer communication and has the potential to overcome LoRaWAN limitations. In this work, we implement DSME on top of LoRa in the open source IoT OS RIOT and open the field for first evaluation experiments on real hardware. Initial results indicate that DSME-LoRa not only enables reliable peer-to-peer communication for constrained IoT devices, but also scales with an increasing number of nodes.

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。

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