Spectrum sharing between RLANs and terrestrial links in the 6 GHz band

In the United States, the 6 GHz band (5925-7125 MHz) has recently been opened for unlicensed use, such as Radio Local Area Networks (RLANs), while sharing the spectrum with current incumbents. This paper proposes a novel aggregate interference model to analyze the impact of RLANs, specifically Wi-Fi devices, on fixed and mobile terrestrial incumbents, based on a spatial, time and frequency-domain approach using Monte Carlo simulations and real data. We simulate low-power indoor and standard-power operations based on the rules authorized by the Federal Communications Commission (FCC). In addition, we analyze the effect of increasing the maximum power spectral density by 3 dB for low-power indoor operations, as inquired by the FCC. Urban, suburban and rural scenarios were simulated and compared. The results show that Wi-Fi devices can coexist with terrestrial incumbents without causing harmful interference.