Optimized Combination of Conventional and Constrained Massive MIMO Arrays
Konferenz: WSA 2017 - 21th International ITG Workshop on Smart Antennas
15.03.2017 - 17.03.2017 in Berlin, Deutschland
Tagungsband: WSA 2017
Seiten: 4Sprache: EnglischTyp: PDF
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Autoren:
Staudacher, Markus; Kramer, Gerhard (Institute for Communications Engineering, TUM, Germany)
Zirwas, Wolfgang; Panzner, Berthold; Sivasiva Ganesan, Rakash (Nokia Bell Labs, Munich)
Inhalt:
A combination of low cost constrained massive multiple-input-multiple-output (MIMO) and conventional arrays for constructing receiver signal points is investigated. The constrained radio frequency (RF) front ends are limited to on/off switching of antenna elements. A few full RF frontends are shown to compensate for the signal errors of the constrained RF frontends for various scenarios. An algorithm for such a hybrid RF (HRF) system is developed that optimizes the performance with respect to the mean square error of the constructed receiver signals for a Rayleigh fading channel model.