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arXiv · 2210.07470

Measurement of 2x2 LoS MIMO Terahertz Channel

Suresh Singh·Thanh Le·Ha Tran
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Abstract

This paper examines the performance of a 2x2 Line of Sight (LoS) Multiple Input Multiple Output (MIMO) channel at three terahertz frequencies-340 GHz, 410 Ghz, and 460 GHz. While theoretical models predict very high channel capacities, we observe lower capacity which is explained by asymmetric transmit-to-receive signal strengths as well as due to signal attenuation over longer distances. Overall, however, we note that at 460 Ghz, channel capacity of higher than 12 bps/hz is possible even at sub-optimal inter-antenna spacings (for different distances). An important observation is also that we need to maintain appropriate receive signal levels at receive antennas in order to improve capacity.

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Suresh Singh, Thanh Le, Ha Tran. 2022-10-14. Measurement of 2x2 LoS MIMO Terahertz Channel. https://doi.org/10.1109/wcnc45663.2020.9120501

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