Abstract

A large number of different low-power wireless network technologies exist, including IEEE 802.15.4, Bluetooth Low Energy, multiple protocol standards of WiFi (IEEE 802.11), Near Field Communication (NFC), and LoRa. Given this number of competing technologies, the selection of the best one for a new project is not trivial. This paper aims to help Internet of Things (IoT) practitioners in this task. To this end, we illuminate the underlying technical differences between these state-of-the-art wireless solutions through their assessment and brief analysis. We quantify and compare their latency, throughput and overhead, as well as overview their main characteristics such as frequency bands, bandwidth, medium access methods, and packet sizes.

中文翻译：

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物联网低功耗无线网络技术概览

摘要

存在大量不同的低功耗无线网络技术，包括IEEE 802.15.4，低功耗蓝牙，WiFi的多种协议标准（IEEE 802.11），近场通信（NFC）和LoRa。考虑到如此多的竞争技术，为一个新项目选择最佳技术并不是一件容易的事。本文旨在帮助物联网（IoT）从业者完成此任务。为此，我们通过评估和简要分析来阐明这些最新无线解决方案之间潜在的技术差异。我们量化并比较它们的延迟，吞吐量和开销，并概述它们的主要特征，例如频带，带宽，介质访问方法和数据包大小。