Measurement of 2x2 Los Terahertz MIMO Channel
2020 IEEE Wireless Communications and Networking Conference (WCNC)
This paper examines the performance of a 2×2 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.
Copyright 2020 IEEE
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Singh, S., Le, T., & Tran, H. (2020). Measurement of 2x2 LoS Terahertz MIMO Channel. Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/wcnc45663.2020.9120501