Enable Touch-based Communication between Laptop and Smartwatch
Authors: 
Dian Ding, Yijie Li, Hao Pan, Yu Lu, Yi-Chao Chen, Guangtao XueAuthors Info & Claims
Dian Ding, Yijie Li, Hao Pan, Yu Lu, Yi-Chao Chen, Guangtao XueAuthors Info & ClaimsPages 4 - 8
Abstract
Wearable devices, including smartwatches, are increasingly popular among consumers due to their user-friendly services. However, transmitting sensitive data like social media messages and payment QR codes via commonly used low-power Bluetooth exposes users to privacy breaches and financial losses. This study introduces TouchHBC, a secure and reliable communication scheme leveraging a smartwatch's built-in electrodes. This system establishes a touch-based human communication system utilizing a laptop's leakage current. As the transmitting device, the laptop modulates this current via the CPU. Simultaneously, the smartwatch, equipped with built-in electrodes, captures the current traversing the human body and decodes it. The modulation and decoding processes involve techniques such as amplitude modulation, spectral subtraction, channel estimation, and retransmission mechanisms. TouchHBC facilitates communication between laptops and smartwatches. Real-world tests demonstrate that our prototype achieves a throughput of 19.83bps. Moreover, TouchHBC offers the potential for enhanced interaction, including improved gaming experiences through vibration feedback and secure touch login for smartwatch applications by synchronizing with a laptop.
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Index Terms
- Enable Touch-based Communication between Laptop and Smartwatch
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Published: 05 October 2024
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UbiComp '24: The 2024 ACM International Joint Conference on Pervasive and Ubiquitous Computing
October 5 - 9, 2024
Melbourne VIC, Australia
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