Leaky Waveguide Antennas for Downlink Wideband THz Communications
Yaela Gabay, Nir Shlezinger, Tirza Routtenberg, Yasaman Ghasempour, George C. Alexandropoulos, Yonina C. Eldar
Abstract
THz communications are expected to play a profound role in future wireless systems. The current trend of the extremely massive multiple-input multiple-output (MIMO) antenna architectures tends to be costly and power inefficient when implementing wideband THz communications. An emerging THz antenna technology is leaky wave antenna (LWA), which can realize frequency selective beamforming with a single radiating element. In this work, we explore the usage of LWAs technology for wideband multi-user THz communications. We propose a model for the LWA signal processing that is physically compliant facilitating studying LWA-aided communication systems. Focusing on downlink systems, we propose an alternating optimization algorithm for jointly optimizing the LWA configuration along with the signal spectral power allocation to maximize the sum-rate performance. Our numerical results show that a single LWA can generate diverse beampatterns at THz exhibiting performance comparable to costly fully digital MIMO arrays.
BibTeX
@inproceedings{icassp2024_leakywaveguidean,
title = {Leaky Waveguide Antennas for Downlink Wideband THz Communications},
author = {Yaela Gabay and Nir Shlezinger and Tirza Routtenberg and Yasaman Ghasempour and George C. Alexandropoulos and Yonina C. Eldar},
booktitle = {ICASSP 2024},
year = {2024}
}