A high-accuracy phase-based ranging solution with Bluetooth Low Energy (BLE)
| Autor: | Jac Romme, Pouria Zand, Frank Pasveer, Guido Dolmans, Jochem Govers |
|---|---|
| Přispěvatelé: | Electronic Systems |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Asset tracking
Computer science computer.internet_protocol Network packet Frequency band phase-measurement Real-time computing channel hopping 020206 networking & telecommunications Ranging 02 engineering and technology ranging localization CTE 0202 electrical engineering electronic engineering information engineering Fading Link layer computer Communication channel Bluetooth Low Energy Bluetooth Low Energy (BLE) |
| Zdroj: | WCNC 2019 IEEE Wireless Communications and Networking Conference, WCNC 2019 |
| DOI: | 10.1109/wcnc.2019.8885791 |
| Popis: | Nowadays, indoor positioning and asset tracking have become popular and essential for many applications and use-cases. As Bluetooth Low Energy (BLE) is widely deployed in smart tags, smart-phones, and smart-devices, adding functionality to support localization and asset tracking is crucial. In order to locate a device, either the angle or range to the device needs to be calculated. In this paper, we focus on a phase-based solution to calculate the range between devices. We introduce a multi-carrier phase-based ranging solution compatible with the BLE standard that utilizes BLE channel hopping to exchange tones in the entire 2.4 GHz frequency band to mitigate the multi-path fading problem. We recognize that in the BLE standard, slow channel-hopping, long packet size and frame spacing between two consecutive communications (named TIFS) affect ranging error/accuracy, in the case of crystal offset and phase-noise. Therefore, we introduce a new mathematical model to analyze the impact of the BLE link layer protocol on the ranging error. Finally, we evaluate the accuracy of our proposed solution through modelling, by considering the results of real experiments and by validating the correctness of our mathematical model for the ranging error. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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