Structured Sensing Matrix Design for In-sector Compressed mmWave Channel Estimation

Conference paper (2022)

Authors

H. Masoumi Team Nitin Myers - Mechanical, Maritime and Materials Engineering
N.J. Myers Team Nitin Myers - Mechanical, Maritime and Materials Engineering
G.J.T. Leus Signal Processing Systems - EEMCS
S. Wahls Team Sander Wahls - Mechanical, Maritime and Materials Engineering
M.H.G. Verhaegen Team Michel Verhaegen - Mechanical, Maritime and Materials Engineering
Research Group
Team Nitin Myers (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2022 H. Masoumi, N.J. Myers, G.J.T. Leus, S. Wahls, M.H.G. Verhaegen
DOI: https://doi.org/10.1109/SPAWC51304.2022.9833949
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Published Date

2022

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Delft Center for Systems and Control

Research Group

Team Nitin Myers

Abstract

Fast millimeter wave (mmWave) channel estimation techniques based on compressed sensing (CS) suffer from low signal-to-noise ratio (SNR) in the channel measurements, due to the use of wide beams. To address this problem, we develop an in-sector CS-based mmWave channel estimation technique that focuses energy on a sector in the angle domain. Specifically, we construct a new class of structured CS matrices to estimate the channel within the sector of interest. To this end, we first determine an optimal sampling pattern when the number of measurements is equal to the sector dimension and then use its subsampled version in the sub-Nyquist regime. Our approach results in low aliasing artifacts in the sector of interest and better channel estimates than benchmark algorithms.

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- Embargo expired in 28-01-2023