Leveraging Location Information for RIS-aided mmWave MIMO Communications
Journal article, 2021

Location information offered by external positioning systems, e.g., satellite navigation, can be used as prior information in the process of beam alignment and channel parameter estimation for reconfigurable intelligent surface (RIS)-aided millimeter wave (mmWave) multiple-input multiple-output networks. Benefiting from the availability of such prior information, albeit imperfect, the beam alignment and channel parameter estimation processes can be significantly accelerated with less candidate beams explored at all the terminals. We propose a practical channel parameter estimation method via atomic norm minimization, which outperforms the standard beam alignment in terms of both the mean square error and the effective spectrum efficiency for the same training overhead.

Atomic norm minimization

reconfigurable intelligent surface

millimeter wave MIMO

location information


Jiguang He

University of Oulu

Henk Wymeersch

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Markku Juntti

University of Oulu

IEEE Wireless Communications Letters

2162-2337 (ISSN)

Vol. 10 7 1380-1384 9382000

Multi-dimensional Signal Processing with Frequency Comb Transceivers

Swedish Research Council (VR) (2018-03701), 2018-12-01 -- 2021-12-31.

Areas of Advance

Information and Communication Technology

Subject Categories


Control Engineering

Signal Processing



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