A Greedy Approach for Multiuser mmWave Hybrid Precoding with Subarray Architectures

Conference: WSA 2018 - 22nd International ITG Workshop on Smart Antennas
03/14/2018 - 03/16/2018 at Bochum, Deutschland

Proceedings: ITG-Fb. 276: WSA 2018

Pages: 4Language: englishTyp: PDF

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Iwanow, Marcin; Bazzi, Samer (Huawei Technologies, German Research Center, Munich, Germany)
Utschick, Wolfgang (Associate Institute for Signal Processing, Technische Universität München (TUM), Germany)

We consider a multiuser mmWave downlink with hybrid digital-analog transceivers, where the analog stage is realized with a network of phase shifters. Moreover, we concentrate on a case particularly relevant from the practical perspective. Namely, we constrain the analog stages such that disjoint antenna subarrays are processed separately in the analog domain. In this work, we extend the promising results from [1] to a multiuser scenario. Like in the referenced work, we separate the design of the digital and analog processing, and concentrate on the latter.