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Research

List of Publications

For a complete and up-to-date list refer to Research Gate or ORCID.

An Efficient Low-power Wake-up Receiver Architecture for Power Saving for Transmitter and Receiver Communications
Robert Fromm, Lydia Schott, and Faouzi Derbel
Conference paper for SENSORNETS 2021
DOI, Manuscript (PDF)

Analytical and Experimental Performance Analysis of Enhanced Wake-Up Receivers Based on Low-Power Base-Band Amplifiers
Lydia Schott, Robert Fromm, Ghada Bouattour, Olfa Kanoun, and Faouzi Derbel
Journal article published in MDPI Sensors, 2022
DOI, PDF

Wake-Up Receiver-Based Routing for Clustered Multihop Wireless Sensor Networks
Maximilian Weber, Ghofrane Fersi, Robert Fromm, and Faouzi Derbel
DOI, PDF

Reliable Wake-up Receiver with Increased Sensitivity using Low-Noise Amplifiers
Robert Fromm, Olfa Kanoun, and Faouzi Derbel
Conference paper for SSD 2022
DOI, Manuscript (PDF)

Improved Wake-Up Receiver Architectures with Carrier Sense Capabilities for Low-Power Wireless Communication
Robert Fromm, Lydia Schott, and Faouzi Derbel
Book chapter, published 2022
DOI, Manuscript (PDF)

Appropriate Integration of Wake-up Receivers in Simulations Tools based on Real Experiments
Amina Whichi, Robert Fromm, Ahmed Fakhfakh, and Faouzi Derbel
Conference paper for SENSORNETS 2022
DOI

Wake-up Receiver

Wake-up receivers (WuRxs) are currently my main research topic and the topic of my upcoming dissertation. In the following some few words explaining the importance of WuRx:

The use of wireless sensor networks (WSNs) in research and industry is steadily increasing. WSNs are essential for the sensing and collection of environmental data in different application fields. Powering sensor nodes using small batteries is often mandatory. Recharging and swapping batteries is usually not possible or would lead to higher maintenance costs. Parameters like latency, transmission range, and sensitivity are likewise major parameters when designing the hardware of a sensor node.

A continuous or a real-time wireless communication is nowadays essential for many applications when building an autonomous WSN. To maintain such a wireless communication even with modern wireless transceivers would lead to a power consumption greater than 10 mW. In order to power such a sensor node for a long period with a battery, the receiving and sending intervals need to decrease significantly. This inevitably leads to increased latency and response times of the WSN.

A WuRx is a special RF receiver that enables the sensor node to be in a continuous receiving mode. Different approaches with passive and active components exist in order to keep the WuRx power consumption below 10 µW. The following figure shows how a WuRx can be integrated into a sensor node.

alt: "A wireless sensor node with a WuRx. A RF switch is used to separate both receiving paths of WuRx and wireless transceiver.", w:50