Applying the Web of Things Abstraction to Bluetooth Low Energy Communication

Freund M, Dorsch R, Harth A (2022)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2022

Event location: Delft NL

URI: https://arxiv.org/pdf/2211.12934.pdf

Abstract

We apply the Web of Things (WoT) communication pattern, i.e., the semantic description of metadata and interaction affordances, to Internet of Things (IoT) devices that rely on non-IP-based protocols, using Bluetooth Low Energy (LE) as an example. The reference implementation of the WoT Scripting API, node-wot, currently supports only IP-based application layer protocols such as HTTP and MQTT. However, a significant number of IoT devices do not communicate over IP, but via other network layer protocols, e.g. L2CAP used by Bluetooth LE. To leverage the WoT abstraction in Bluetooth Low Energy communication, we specified two ontologies
to describe the capabilities of Bluetooth LE devices and transmitted binary data, considered the different interaction possibilities with the Linux Bluetooth stack BlueZ, and due to better documentation, used the D-Bus API to implement Bluetooth LE bindings in JavaScript. Finally, we evaluated the latencies of the bindings in
comparison to the BlueZ tool bluetoothctl, showing that the Bluetooth LE bindings are on average about 16 percent slower than the comparison program during connection establishment and about 6 percent slower when disconnecting, but have almost the same performance during reading (about 3 percent slower).

Authors with CRIS profile

Michael Freund Lehrstuhl für Wirtschaftsinformatik, insbesondere Technische Informationssysteme Andreas Harth Lehrstuhl für Wirtschaftsinformatik, insbesondere Technische Informationssysteme

Involved external institutions

Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE)

How to cite

APA:

Freund, M., Dorsch, R., & Harth, A. (2022). Applying the Web of Things Abstraction to Bluetooth Low Energy Communication. In Proceedings of the Connected World & Semantic Interoperability Workshop. Delft, NL.

MLA:

Freund, Michael, Rene Dorsch, and Andreas Harth. "Applying the Web of Things Abstraction to Bluetooth Low Energy Communication." Proceedings of the Connected World & Semantic Interoperability Workshop, Delft 2022.

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