Ongoing research being developed at the IIoT competence center, fortiss, is focused on networking and computing architectures as basis for an efficient deployment and orchestration of heterogeneous and de-centralized services and resources. Specific aspects concern interoperability aspects, in particular when facing large-scale critical environments with heterogeneous components, such as in Industrial IoT environments. Specific topics: Edge/Fog/cloud computing; semantic behavior to support real-time system adaptation; in-network computing architectures.

DetNetWiFi Project in VDMA Future Manufacturing

October 2022: our fortiss IIoT project appears in the VDMA Future Manufacturing magazine!

DetNetWiFiEdge is a project focused on the integration of deterministic wireless (WiFi 6/7) mechanisms in manufacturing environments. The main purpose of the project is to research and validate mechanisms (time synhronization, co-OFDMA multi-AP coordination, scheduling) to support advanced IoT applications (such as AR/VR) in manufacturing environments.

ns-3 DetNetWiFi framework

November 2022: Download at: https://lnkd.in/e-incWKw

The framework is one of the results of the effort that has been developed by members of the @fortiss IIoT team in the context of industrial and research projects over the last 2 years, and is based on the Wi-Fi 6/TSN demonstrator deployed at the @fortiss IIoT Lab.

Components:

1. Modelling of TSN endpoints and TSN enabled switches interconnected to TSN WLAN regions, including a Time-Aware Shaper

2. Target Wake Time-based time-aware scheduling

3. Per node Timing Model.

4. Fine Time Measurement protocol based synchronisation

5. Documentation, including tutorials, scientific papers, and installation videos.

6. Examples: examples for an end-to-end design (wired/wireless); and for environments with overlapping BSSs (multi-AP environments).

IEEE Access Internet of Space Special Section

Sep 2022: Check the IEEE Access "Internet of Space" special issue on "Internet of Space".

This Special Section focused on gathering the most recent scientific research and insights on the evolution of communication architectures and protocols able to boost the creation of a truly global internet by means of the integration of the current internet with a new Internet of Space; how to support the operation of Tier-1, Tier-2, or even Tier-3 airborne/spaceborne networks; how to address interoperability,within and across different protocol layers in the network architecture, leveraging cross-layer design; and finally how to design a more unified next-generation internet architecture10 able to transparently include spaceborne and airborne platforms in a way that allows for user-centric services, and a smooth operation of transient networks. In total, 30 articles were submitted to the Special Section,nine of which were accepted. The articles cover a wide range of topics, from scheduling aspects to multi-layer networking architectures.

Performance Analysis of IoT Protocols

IoT data exchange is supported today by different communication protocols and communication architectures, each of which with its own advantages and disadvantages, and often co-existing in a way that is mandated by vendor policies. Although different protocols are relevant in different domains, there is not a protocol that provides better performance (jitter, latency, energy consumption) across different scenarios. The focus of this work is two-fold. Firstly, to provide a comparison of the different available solutions, including the Named Data Networking architecture as a relevant example of an Information-centric networking architecture for IoT. Secondly, the work focuses on evaluating three of the most popular protocols used both in Consumer as well as in Industrial IoT environments: MQTT, CoAP, and OPC UA. The experimentation has been carried out first on a local testbed for MQTT, COAP and OPC UA. Then, larger experiments have been carried out for MQTT and CoAP, based on the large-scale FIT-IoT testbed. Results show that CoAP is the protocol that achieves across all scenarios lowest time-to-completion, while OPC UA, albeit exhibiting less variability, resulted in higher time-to-completion in comparison to CoAP or MQTT.


Wireless TSN Survey

December 2021: the IIoT fortiss team has developed a survey together with Huawei aiming at understanding the interest in deploying deterministic wired/wireless environments in production environments. Download survey.