(Invited Paper) Impact of Spatially Consistent Channels on Digital Beamforming for Millimeter-Wave Systems

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding


The premise of massive multiple-input multiple-output (MIMO) is based around coherent transmission and detection. Majority of the vast literature on massive MIMO presents performance evaluations over simplified statistical propagation models. All such models are drop-based and do not ensure continuity of channel parameters. In this paper, we quantify the impact of spatially consistent (SC) models on beamforming for massive MIMO systems. We focus on the downlink of a 28GHz multiuser urban microcellular scenario. Using the recently standardized Third Generation Partnership Project 38.901 SC-I procedure, we evaluate the signal-to-interference-plus-noise ratio of a user equipment and the system ergodic sum spectral efficiency with zero-forcing, block diagonalization, and signal-to-leakage-plus-noise ratio beamforming. Our results disclose that at practical signal-to-noise ratio levels, SC channels yield a significant performance loss relative to the case without SC due to substantial spatial correlation across the channel parameters.


Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Communication Systems


  • Beamforming, ergodic sum spectral efficiency, massive MIMO, mmWave, SINR, spectral efficiency
Original languageEnglish
Title of host publication14th European Conference on Antennas and Propagation (EuCAP)
Number of pages5
Publication statusAccepted/In press - 2020 Mar 1
Publication categoryResearch
Event14th European Conference on Antennas and Propagation 2020 - Bella Center, Center Boulevard 5, 2300 Copenhage, Copenhagen, Denmark
Duration: 2020 Mar 152020 Mar 20


Conference14th European Conference on Antennas and Propagation 2020
Abbreviated titleEuCAP 2020
Internet address

Bibliographic note

Invited paper to EuCAP 2020, Copenhagen

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