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Assessing the Feasibility of Combined BLE and Wi-Fi Communication for High Data Sensing Applications

  • Advanced sensors generate more data than can be transmitted using classic battery-powered wireless sensor networks. While using Wi-Fi would provide plenty of throughput, the receivers are energy hungry and, thus, the radio time needs to be reduced. Previous research suggests to combine Wi-Fi with low-power technologies such as BLE for an energy efficient coordination of the Wi-Fi radios. Existing approaches focus on individual point-to-point routes whereas certain applications require concurrent transmissions. We evaluated the combination of BLE and Wi-Fi on the ESP32-S3 multi-radio microcontroller through detailed energy and throughput measurements. The results show that established BLE connections allow to activateWi-Fi quickly on-demand; the energy efficiency of the data transmission is significantly improved over previous works but the BLE connection setup is prohibitively slow. While the combination of BLE and Wi-Fi provides high throughput with good energy efficiency, careful design of the BLE-based signalling protocol isAdvanced sensors generate more data than can be transmitted using classic battery-powered wireless sensor networks. While using Wi-Fi would provide plenty of throughput, the receivers are energy hungry and, thus, the radio time needs to be reduced. Previous research suggests to combine Wi-Fi with low-power technologies such as BLE for an energy efficient coordination of the Wi-Fi radios. Existing approaches focus on individual point-to-point routes whereas certain applications require concurrent transmissions. We evaluated the combination of BLE and Wi-Fi on the ESP32-S3 multi-radio microcontroller through detailed energy and throughput measurements. The results show that established BLE connections allow to activateWi-Fi quickly on-demand; the energy efficiency of the data transmission is significantly improved over previous works but the BLE connection setup is prohibitively slow. While the combination of BLE and Wi-Fi provides high throughput with good energy efficiency, careful design of the BLE-based signalling protocol is necessary to also achieve low latency.show moreshow less

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Metadaten
Author: Navya Sneha Chatharajupalli, Randolf Rotta, Reinhardt Karnapke, Jörg Nolte
DOI:https://doi.org/10.5555/3639940.3639948
Title of the source (English):EWSN '23: Proceedings of the 2023 International Conference on Embedded Wireless Systems and Networks
Publisher:Association for Computing Machinery
Place of publication:New York
Document Type:Conference publication peer-reviewed
Language:English
Year of publication:2023
Contributing Corporation:ACM
First Page:56
Last Page:59
Fundername (not EU):Bundesministerium für Digitales und Verkehr, Deutsches Bundesministerium für Bildung und Forschung
Project number (not EU):19FS2024D, 16ES1128K
Way of publication:Open Access
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Verteilte Systeme und Betriebssysteme
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