Optimized Combination of Conventional and Constrained Massive MIMO Arrays

Markus Staudacher1, Gerhard Kramer2, Wolfgang Zirwas3, Rakash SivaSiva Ganesan4, Berthold Panzner5

  • 1Technische Universität München
  • 2Technical University of Munich
  • 3Nokia Siemens Networks GmbH&CoKG
  • 4Bell Labs, Nokia
  • 5Nokia Networks



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16:30 - 18:10 | Wed 15 Mar | Main Room | S2

Massive MIMO

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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.

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