Atomic Norm Based Localization and Orientation Estimation for Millimeter-Wave MIMO OFDM Systems
Abstract
Herein, an atomic norm based method for accurately estimating the location and orientation of a target from millimeter-wave multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing (OFDM) signals is presented. A novel virtual channel matrix is introduced and an algorithm to extract localization-relevant channel parameters from its atomic norm decomposition is designed. Then, based on the extended invariance principle, a weighted least squares problem is proposed to accurately recover the location and orientation using both line-of-sight and non-line-of-sight channel information. Numerical results highlight performance improvements over a prior method and the resultant performance nearly achieves the Cramer-Rao lower bound.
Keywords
Cite
@article{arxiv.2110.04401,
title = {Atomic Norm Based Localization and Orientation Estimation for Millimeter-Wave MIMO OFDM Systems},
author = {Jianxiu Li and Maxime Ferreira Da Costa and Urbashi Mitra},
journal= {arXiv preprint arXiv:2110.04401},
year = {2021}
}