Enabling Cross-technology Communication from LoRa to ZigBee via Payload Encoding in Sub-1 GHz Bands
Enabling Cross-technology Communication from LoRa to ZigBee via Payload Encoding in Sub-1 GHz Bands
复制标题
DOI：
10.1145/3470452
复制
发表时间：
2022-02
期刊：
影响因子：
--
通讯作者：
Junyang Shi;Di Mu;M. Sha
中科院分区：
文献类型：
--
作者：
Junyang Shi;Di Mu;M. Sha
低功耗无线网状网络（LPWMN）已广泛应用于无线监测和控制应用。尽管经过几十年的研究，LPWMN在大多数情况下都能令人满意地工作，但它们通常很复杂，变化缺乏弹性，并且一旦部署网络就很难管理。此外，控制命令的传递，特别是那些携带紧急信息，如紧急警报，遭受长延迟，因为消息必须经过逐跳传输。最近的研究表明，在LPWMN设备上添加诸如LoRa之类的低功率广域网无线电（例如，ZigBee）有效地克服了限制。然而，由于硬件修改的成本，用户已经表现出明显的不愿意接受新的异构通信方法。在这篇文章中，我们介绍了LoRaBee，一种新的LoRa到ZigBee跨技术通信（CTC）方法，它利用Sub-1 GHz频段的能量发射作为载体来传递信息。虽然LoRa和ZigBee采用不同的调制技术，但LoRaBee通过在合法LoRa数据包的有效载荷中放置特定字节来将信息从LoRa发送到ZigBee。选择字节，使得ZigBee设备可以通过对接收信号强度进行采样来识别对应的LoRa啁啾。实验结果表明，我们的LoRaBee提供了可靠的CTC通信从LoRa到ZigBee的吞吐量高达281.61 bps的Sub-1 GHz频段。
Low-power wireless mesh networks (LPWMNs) have been widely used in wireless monitoring and control applications. Although LPWMNs work satisfactorily most of the time thanks to decades of research, they are often complex, inelastic to change, and difficult to manage once the networks are deployed. Moreover, the deliveries of control commands, especially those carrying urgent information such as emergency alarms, suffer long delay, since the messages must go through the hop-by-hop transport. Recent studies show that adding low-power wide-area network radios such as LoRa onto the LPWMN devices (e.g., ZigBee) effectively overcomes the limitation. However, users have shown a marked reluctance to embrace the new heterogeneous communication approach because of the cost of hardware modification. In this article, we introduce LoRaBee, a novel LoRa to ZigBee cross-technology communication (CTC) approach, which leverages the energy emission in the Sub-1 GHz bands as the carrier to deliver information. Although LoRa and ZigBee adopt distinct modulation techniques, LoRaBee sends information from LoRa to ZigBee by putting specific bytes in the payload of legitimate LoRa packets. The bytes are selected such that the corresponding LoRa chirps can be recognized by the ZigBee devices through sampling the received signal strength. Experimental results show that our LoRaBee provides reliable CTC communication from LoRa to ZigBee with the throughput of up to 281.61 bps in the Sub-1 GHz bands.