Understanding Subterahertz Radio Channels: The Impact of Beamforming on Wireless System Design

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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9

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IEEE Vehicular Technology Magazine, Volume 20, issue 3, pp. 49-57

Abstract

Wireless connectivity in the subterahertz (sub-THz) band, spanning from 100 GHz to 300 GHz, is envisioned as an enhanced feature of 6G and beyond. Due to significant propagation losses at these frequencies, the transmission of sub-THz signals relies heavily on high antenna directivity, realized by beamforming. In this article, we present a newly developed sub-THz stored channel model, and perform a realistic evaluation of the impact of beamforming on sub-THz link establishment and data transmission. Unlike the propagation channel between the transmitting and receiving antennas, the radio channel is observed by a pair of beams. Incorporating the impact of beamforming into measured sub-THz propagation channel data enables to gain insights into the key factors that determine, among others, sub-THz beam alignment strategy and waveform design, ultimately enhancing spectral efficiency.

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Publisher Copyright: © IEEE. 2005-2012 IEEE. | openaire: EC/HE/101095759/EU//Hexa-X-II

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Zhang, P, De Guzman, M F, Li, X, Cai, X, Haneda, K, Tervo, N, Parssinen, A, Tufvesson, F & Kyosti, P 2025, 'Understanding Subterahertz Radio Channels: The Impact of Beamforming on Wireless System Design', IEEE Vehicular Technology Magazine, vol. 20, no. 3, pp. 49-57. https://doi.org/10.1109/MVT.2025.3573093