Bozheng Pang: My Story of Bluetooth Low Energy

Bluetooth Low Energy is a wireless protocol used in many devices and applications. It operates in a frequency band shared by other wireless communication protocols, which can cause interference and affect its performance. There are two types of interference that can affect Bluetooth Low Energy: interference from other wireless protocols like Wi-Fi and interference from neighboring Bluetooth Low Energy devices. This research focuses on improving the performance of Bluetooth Low Energy under interference. The study is divided into two directions: (1) improving performance under Wi-Fi interference (2) and understanding the impact of interference from neighboring Bluetooth Low Energy devices. To improve performance under Wi-Fi interference, algorithms that gather interference information and help Bluetooth Low Energy avoid Wi-Fi communication are developed. Experimental results show that this greatly improved the performance of Bluetooth Low Energy compared to previous research. To understand the impact of interference from neighboring Bluetooth Low Energy devices, mathematical models that quantify the impact are developed. This is the first time such models have been developed and they provide valuable insights into the trade-off between different performance metrics within Bluetooth Low Energy communication. This work can help developers and researchers set up Bluetooth Low Energy communication more efficiently.

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