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We conducted one of the most comprehensive many-antenna MU-MIMO channel measurement campaigns ever reported. Our measurement system supports full mobility with very high time-frequency resolution. We report channel traces in the UHF, 2.4 GHz, and 5 GHz bands, in diverse environments, with up to 104 base-station antennas serving 8 users. We characterize channel stability and capacity across these bands...
Three prominent features of massive MIMO are studied using channel measurements. Those features are extensively exploited in signal processing methods for massive MIMO and have been only partially, or not at all, validated. First, channel hardening is characterized as a function of the number of antennas. Second, user decorrelation is evaluated as a function of the distance between users. At last,...
In order to realistically model urban micro-cell environments with low base station heights, a measurement campaign has been conducted in the 3.5–3.8 GHz frequency band. The two scenarios of interest are the Urban Micro (UMi) Campus and Open Square scenarios. The findings of this campaign led to a parameter set for the quasi deterministic radio channel generator (QuaDRiGa) channel model and shall...
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