John S. Thompson — accepted AI-conference papers

2020

Wideband Channel Tracking for Millimeter Wave Massive Mimo Systems with Hybrid Beamforming Reception

George C. Alexandropoulos, Evangelos Vlachos, John S. Thompson

ICASSP 2020accepted

Millimeter Wave (mmWave) massive Multiple Input Multiple Output (MIMO) channel tracking is a challenging task with Hybrid analog and digital BeamForming (HBF) reception architectures. The wireless channel can only be spatially sampled with directive analog beams, which results in lengthy training pe…

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2018

Dithered Beamforming for Channel Estimation in Mmwave-Based Massive Mimo

Evangelos Vlachos, John S. Thompson

ICASSP 2018accepted

In this work we consider the challenging problem of channel estimation at the receiver of a massive multiple-input multiple-output system with hybrid analog/digital beamforming and low-resolution quantization. We propose a dithered beamforming architecture, where random control signals are injected…

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