Drone-Based Spatial MIMO Measurements in Three Dimensions
Conference: WSA 2020 - 24th International ITG Workshop on Smart Antennas
02/18/2020 - 02/20/2020 at Hamburg, Germany
Proceedings: ITG-Fb. 291: WSA 2020
Pages: 4Language: englishTyp: PDF
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Authors:
Gauger, Marc; Arnold, Maximilian; ten Brink, Stephan (Institute of Telecommunications, Pfaffenwaldring 47, University of Stuttgart, 70569 Stuttgart, Germany)
Abstract:
This paper presents spatial channel measurements using a wireless drone equipped with a lightweight OFDM transmitter that also embeds position data into the signal. At the basestation, a 64-element antenna array in combination with 64 parallel RF chains is used to receive, downconvert and digitize the multi-antenna signal. The massive MIMO channel is further characterized using off-line post-processing by extracting channel state information in the frequency domain. A first result shows the orthogonality cluster structure after applying a k-means algorithm, and the achievable “decorrelation” of users in azimuthal angular space by evaluating pairwise orthogonality in 3-dimensional space.