In Internet of Things (IoT), ZigBee and Bluetooth Low Energy (BLE) are two popular technologies. Their devices often coexist and enabling them to communicate with each other will facilitate our daily lives greatly. In this article, we present PatternBee, a lightweight physical-level cross-technology communication (PHY-level CTC) scheme which enables ZigBee-to-BLE direct communications. In PatternBee, the BLE receiver divides received ZigBee symbols into pieces. We find that some pieces always have a phase shift of 0 no matter how large the sampling offset is. We call these pieces offset resist pieces (ORPs). By identifying the occurrence pattern of these ORPs, we propose a Pattern-based decoding algorithm. With this algorithm, the BLE receiver can decode ZigBee symbols at very low processing complexity, while achieving very high decoding accuracy. Real-world experiments verify the effectiveness and accuracy of PatternBee.

中文翻译：

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PatternBee：通过抗偏移模式实现 ZigBee 到 BLE 的直接通信

在物联网 (IoT) 中，ZigBee 和低功耗蓝牙 (BLE) 是两种流行的技术。它们的设备通常共存，使它们能够相互通信将极大地方便我们的日常生活。在本文中，我们介绍了 PatternBee，这是一种轻量级的物理级跨技术通信（PHY 级 CTC）方案，可实现 ZigBee 到 BLE 的直接通信。在 PatternBee 中，BLE 接收器将接收到的 ZigBee 符号分成几部分。我们发现，无论采样偏移有多大，某些片段的相移始终为 0。我们将这些部件称为偏移抗蚀剂部件 (ORP)。通过识别这些 ORP 的出现模式，我们提出了一种基于模式的解码算法。使用该算法，BLE 接收器可以以非常低的处理复杂度解码 ZigBee 符号，同时实现非常高的解码精度。