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基于 PCO 的 BLE 网状加速器。

PCO-Based BLE Mesh Accelerator.

机构信息

Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853, USA.

Eridan Communications Inc., Mountain View, CA 94041, USA.

出版信息

Sensors (Basel). 2022 Jul 16;22(14):5324. doi: 10.3390/s22145324.

DOI:10.3390/s22145324
PMID:35891003
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9316049/
Abstract

Bluetooth Low Energy (BLE) mesh networks enable diverse communication for the Internet of Things (IoT). However, existing BLE mesh implementations cannot simultaneously achieve low-power operation, symmetrical communication, and scalability. A major limitation of mesh networks is the inability of the BLE stack to handle network-scalable time synchronization. Pulse-coupled oscillators (PCOs) have been studied extensively and are able to achieve fast and reliable synchronization across a range of applications and network topologies. This paper presents a lightweight physical (PHY) layer accelerator to the BLE stack that enables scalable synchronization command with a PCO. The accelerator is a fully digital solution that can be synthesized with only the standard cells available in any silicon technology. This paper provides a detailed analysis of PCO-based BLE mesh networks and explores per-node system-level requirements. Finally, the analytical results are validated with measurements of a custom radio node based on the ubiquitous AD9364 transceiver.

摘要

蓝牙低能 (BLE) 网状网络为物联网 (IoT) 提供了多样化的通信。然而，现有的 BLE 网状网络实现无法同时实现低功耗操作、对称通信和可扩展性。网状网络的一个主要限制是 BLE 堆栈无法处理可扩展的网络时间同步。脉冲耦合振荡器 (PCO) 已经得到了广泛的研究，并且能够在各种应用程序和网络拓扑中实现快速可靠的同步。本文提出了一种针对 BLE 堆栈的轻量级物理 (PHY) 层加速器，该加速器支持使用 PCO 进行可扩展的同步命令。该加速器是一种全数字解决方案，仅使用任何硅技术中标准单元即可进行综合。本文对基于 PCO 的 BLE 网状网络进行了详细分析，并探讨了每个节点的系统级要求。最后，通过基于普遍存在的 AD9364 收发器的定制无线电节点的测量对分析结果进行了验证。

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本文引用的文献

1
Bluetooth Low Energy Mesh Networks: Survey of Communication and Security Protocols.蓝牙低能 Mesh 网络：通信和安全协议综述。
Sensors (Basel). 2020 Jun 25;20(12):3590. doi: 10.3390/s20123590.
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The Bluetooth Mesh Standard: An Overview and Experimental Evaluation.蓝牙 Mesh 标准：概述与实验评估。
Sensors (Basel). 2018 Jul 25;18(8):2409. doi: 10.3390/s18082409.
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Performance Evaluation of Bluetooth Low Energy: A Systematic Review.低功耗蓝牙的性能评估：一项系统综述
Sensors (Basel). 2017 Dec 13;17(12):2898. doi: 10.3390/s17122898.
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Bluetooth Low Energy Mesh Networks: A Survey.低功耗蓝牙网状网络：一项综述。
Sensors (Basel). 2017 Jun 22;17(7):1467. doi: 10.3390/s17071467.