ACM NanoCom 2023

10th ACM International Conference on Nanoscale Computing and Communication

Coventry, UK, September 20-22, 2023

Invited Talks

Invited Talk 1: Toward THz RIS-Parametrized Wireless Networks-on-Chip
Session Chair: Filip Lemic (i2Cat Foundation, Spain)
Time: Wednesday, September 20 - 10:30-11:00 (UTC+1:00)
	Philipp del Hougne CNRS Researcher (Tenured) Université de Rennes France

Wireless networks-on-chip (WNoCs) are a promising complementary interconnect technology to overcome the communication bottleneck of many-core chips. Yet, pecularities of the on-chip radio environment like its strong reverberation still thwart WNoCs. First, I will discuss our recent proposal to endow the WNoC with an on-chip reconfigurable intelligent surface (RIS) to dynamically mold the on-chip wireless channels, e.g., for traffic-adjusted over-the-air channel equalization [1]. Second, I will present our progress toward implementing this idea in the 0.3 THz regime, where the required WNoC bandwidths are more readily available than at mmW frequencies. Third, I will introduce a semi-analytical physical model of RIS-parametrized on-chip wireless channels that allows us (after a calibration step) to rapidly optimize the on-chip RIS configuration for a desired WNoC functionality without requiring numerous prohibitively expensive full-wave simulations.

[1] M. F. Imani, S. Abadal, and P. del Hougne. Metasurface‐programmable wireless network‐on‐Chip. Advanced Science, 9(26), 2201458, 2022. https://doi.org/10.1002/advs.202201458

Short Biography
Philipp del Hougne is a tenured CNRS researcher affiliated with the Université de Rennes, France. He graduated in physics from Imperial College London, United Kingdom, and was awarded a doctorate by Université Sorbonne Paris Cité, France. He subsequently held postdoctoral positions in Nice and Rennes, France, and Lausanne, Switzerland.
He currently leads the Intelligent Wave Systems group at CNRS - IETR (Université de Rennes), France, which combines programmable-metamaterial hardware with artificial-intelligence algorithms and mesoscopic-scattering theory to mold the flow of information through tailored wave-matter interactions for information extraction (imaging, sensing, and localization), information processing (analog wave-based computing), and information transfer (wireless communications).

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Invited Talk 2: Interfacial instability of liquid interphase improves molecular communication density
Session Chair: Andrew Eckford (York University, Canada)
Time: Friday, September 22 - 09:00-09:30 (UTC+1:00)
	Nunzio Tuccitto Associate Professor Physical Chemistry Department of Chemical Sciences University of Catania Viale A.Doria 6 95125 Catania, Italy

Molecular communication is a communication paradigm that takes inspiration from biological systems, where information is encoded and transmitted using chemical signals. In this paradigm, signaling molecules are used as carriers to convey information between sender and receiver nanomachines. In the context of molecular communication, CSK (Concentration Shift Keying) is a modulation technique used to encode and transmit information using variations in the concentration of signaling molecules. However, CSK is susceptible to various challenges and limitations. Diffusion and dispersion of signaling molecules in the medium can cause distortions and delays in the received signal. Additionally, environmental factors such as channel noise, interference from other molecules, and channel fading can impact the reliability and performance of CSK-based communication systems. To overcome some of these limitations, various modulation schemes and coding techniques have been proposed in molecular communication research, including MoSK (Molecule Shift Keying). MoSK is a modulation technique in molecular communication that exploits the use of different types of signaling molecules to encode digital information. In this work, we exploit a peculiar chemical-physical phenomenon due to the development of interfacial instability between two miscible liquids to confine chemical messengers and modulate the associated signal. We called it Interfacial Shift Keying (ISK) The chemical messengers we prepare for the purpose are fluorescent nanoparticles known as carbon quantum dots. First theoretically and then experimentally, we demonstrate that by exploiting the chemical messengers’ confinement a significant increase in message transmission speed can be achieved with respect to the traditional signal modulation methods already known in the molecular communication. This paper extends our previous work on ISK reducing the number of used messenger to 2 by including the modulation of the distance between two injections of messengers.

Short Biography
Nunzio Tuccitto received his PhD in chemistry in 2007. Prof. Tuccitto is currently associate professor of physical chemistry at University of Catania, Italy. His research activity is focused on developing carbon-based fluorescent nanomaterials for molecular communication through liquids. Prof. Tuccitto has co-authored more than 95 scientific articles in international journals including Nature Materials, Nanoscale, Carbon, etc. His research group chemically synthesizes the nanoparticles and makes benchtop prototypes for Molecular Communication experimental testing. He is a member of the Italian Chemical Society from which he recently received an award for his outstanding research regarding molecular communication.

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