January 19, 2024

Brief update on accepted papers during last 4 months:

D. Frometa Fonseca, M. Sarmad Mir, S. Iglesias de Frutos, B. Genoves Guzman, D. Giustiniano, “Modulating LiFi for dual operation in the visible and infrared spectra”, accepted in Computer Communications, 2024. We here extend our prior work published in WONS 2023 with a handier prototype that offers savings in energy consumption, space and cost.

M. S. Mir, B. G. Guzman, A. Varshney and D. Giustiniano, “LiFi for Low-Power and Long-Range RF Backscatter”, accepted in IEEE/ACM Transactions on Networking, 2023. Extension of our prior work published in ACM Mobicom 2021. We now design and implement a novel technique for embedding multiple symbols in the RF backscatter based on delayed chirps. Experimental results with an RF carrier of 17 dBm show that we can generate RF backscatter with a range of 92.1 meters/uW consumed in the tag, which is almost double with respect to prior work.

D. Frometa Fonseca, B. Genovés Guzmán, G. Luca Martena, R. Bian, H. Haas, and D. Giustiniano, “A prediction-model-assisted reinforcement learning algorithm for handover decision-making in hybrid LiFi and WiFi networks”, accepted in IEEE Journal of Optical Communications and Networking, 2023. In this work we offer a handover solution in hybrid WiFi-LiFi networks. Specifically, we design a classification model to predict the type of user’s trajectory and assist a reinforcement learning (RL) algorithm to make handover decisions that are automatically adapted to new network conditions.

Author versions are now published!

September 2, 2023

Brief update on accepted papers during last months:

M. Mir, M. Cui, B. Genoves, Q. Wang, J. Xiong, D. Giustiniano, “LeakageScatter: Backscattering LiFi-leaked RF Signals”, accepted in ACM Mobihoc, 2023. Here we explore the RF signal leaked from LiFi LED bulbs to enable power-efficient uplink RF backscatter. This means a big step to get rid of an ad-hoc carrier generator necessary (till now) for RF-backscatter, and it shows one more benefit of hybrid VLC and RF systems.

D. Frometa Fonseca, B. Genoves Guzman, D. Giustiniano and J. Widmer, “A System Architecture for Battery-free IoT Networks”, accepted in IEEE ICNP, 2023. Due to patent procedure, more details will be given at the time of its publication.

B. Genoves Guzman, M. Morales Cespedes, V.P. Gil Jimenez, A. Garcia Armada, M. Brandt-Pearce, “Optimal mirror placement to minimize the outage area in Visible Light Communication”, accepted in IEEE Globecom 2023. In this paper we explore the potential of conventional mirrors to minimize the outage probability in VLC. We determine the optimal positions depending on the required SNR, among other factors.

We will publish the author version of the papers very soon. Stay tuned!

January 31, 2023

Our work on prototyping Visible Light Communication for the Internet of Things using OpenVLC has been accepted for publication in IEEE Communications Magazine. Joint work with Muhammad Sarmad Mir, Dayrene Frometa Fonseca, Ander Galisteo, Qing Wang, and Domenico Giustiniano. Article already available in the Publications tab.

January 9, 2023

Our work where we show the potential of LiFi-enabled Internet of Things for sustainable greenhouses has been accepted for publication in IEEE Communications Magazine. Joint work between IMDEA Networks and University of California, Santa Cruz (UCSC), USA. Co-authors: Borja Genoves Guzman, Javier Talavante, Dayrene Frometa Fonseca, Muhammad Sarmad Mir, Domenico Giustiniano, Katia Obraczka, Michael E. Loik, Sylvie Childress, Darryl G. Wong. Article already available in the Publications tab.

January 1, 2022

I am glad to announce that I have just joined the University of Virginia, USA, as a postdoctoral fellow. I am funded by the European Commission to work on the Marie Curie Postdoctoral fellowship (RISA-VLC). During the outgoing phase of the fellowship (Jan 23 – Dec 24) I will be working at the University of Virginia (USA), and the return phase (Jan 25 - Dec 25) of the MSCA fellowship will be at the University Carlos III of Madrid (Spain). I will design RIS-based LiFi for enabling autonomous IoT devices, studying the boundaries on communication and energy harvesting. Keep posted on the results!

December 15, 2022

After 3,5 years at IMDEA Networks as a postdoctoral researcher, it is time to face new challenges. I want to thank the PERSYS group for this amazing time full of happy moments and hard work. It was a dream team!

December 2, 2022

Our work on the use of blind interference alignment (BIA) for Vehicular-VLC has been accepted for publication in IEEE Vehicular Technology Magazine. Joint work with Maximo Morales Céspedes, Víctor P. Gil Jiménez and Ana García Armada. Article already available in the Publications tab.