Linear Precoder Performance for Massive MIMO Systems in near LOS Environments: Application to mmWave Transmission

Conference: European Wireless 2015 - 21th European Wireless Conference
05/20/2015 - 05/22/2015 at Budapest, Hungary

Proceedings: European Wireless 2015

Pages: 6Language: englishTyp: PDF

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Roze, A.; Helard, M.; Crussiere, M.; Langlais, C. (IRT b<>com, Rennes, France)
Helard, M.; Crussiere, M. (Université Européenne de Bretagne, INSA, IETR, CNRS UMR 6164, Rennes, France)
Langlais, C. (Electronics Department, Institut Mines-Telecom, Telecom Bretagne, CNRS UMR 6285 Lab-STICC, Brest, France)

As the wireless communication network is driven toward densification with small cell deployments, massive MIMO technology shows great promises to boost capacity and energy efficiency. This paper aims at showing how raising carrier frequencies impacts the performance of the linear precoders used in Massive MIMO systems. By means of a geometrical deterministic channel model, we simulate a dense outdoor scenario and highlight the influence of the direct and multi-paths components. More importantly we prove that, in a Line-of-Sight configuration, the discriminating skills of the well known Zero Forcing precoder is much more sensitive to the antenna array architecture and the user location than the Conjugate precoder.