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arXiv · 2204.05931

Experimental Validation of Time Reversal Multiple Access for UWB Wireless Communications Centered at the $273$ GHz Frequency

Ali Mokh·Julien de Rosny·George C. Alexandropoulos·Mohamed Kamoun·Abdelwaheb Ourir·Ramin Khayatzadeh·Arnaud Tourin·Mathias Fink
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Abstract

Ultra-high data rates with low-power consumption wireless communications and low-complexity receivers is one of the key requirements for the next 6-th Generation (6G) of communication networks. Sub-Terahertz (SubTHz) frequency bands can support Ultra-WideBand (UWB) communications and can thus offer unprecedented increase in the wireless network capacity, rendering those bands and relevant research a strong candidate technology for 6G. However, in contrast to millimeter-wave communications, the technological advances in subTHz transceivers are not yet completely mature. In this paper, we focus on the Time Reversal (TR) precoding scheme, which is a computationally simple and robust technique capable of focusing UWB waveforms on both time and space, by exploiting channel diversity when available. We design a novel experimental setup, including a THz link inside a waveguide and operating at the carrier frequency 273.6 GHz with 2 GHz transmission bandwidth, and deploy it to perform multi-user communications with simple modulation. Our results demonstrate large communication rates with only 3 mm space separation of the receiving antennas.

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Ali Mokh, Julien de Rosny, George C. Alexandropoulos, Mohamed Kamoun, Abdelwaheb Ourir, Ramin Khayatzadeh, Arnaud Tourin, Mathias Fink. 2022-04-12. Experimental Validation of Time Reversal Multiple Access for UWB Wireless Communications Centered at the $273$ GHz Frequency. https://arxiv.org/abs/2204.05931

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