Joint Estimation of Channel Parameters in Massive MIMO Systems via PARAFAC Analysis

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Details zur Publikation

Autorinnen und Autoren: Wei X, Peng W, Wing Kwan Ng D, Schober R, Jiang T
Herausgeber: IEEE
Jahr der Veröffentlichung: 2018
ISBN: 978-1-5386-3652-7
Sprache: Englisch


Abstract

In this paper, we investigate channel parameter estimation for massive multiple-input multiple-output (MIMO) systems, where a large base station (BS) antenna array is used to provide multiplexing and diversity gains. We propose a Parallel Factor (PARAFAC)-based joint estimation scheme, which exploits the low-rank property of massive MIMO channels caused by the physical finite scattering environment. Specifically, we first parameterize the channel in terms of fading coefficients, directions of arrival (DOAs), and delays, thereby the channel is characterized via three equivalent PARAFAC models. Subsequently, we certify the identifiability of the three parameters of the PARAFAC models by exploiting the low-rank property. Then, we develop the proposed PARAFAC-based estimation scheme, which jointly estimates the three channel parameters using an alternating least squares (ALS) algorithm. Moreover, we analyze the computational complexity of the proposed scheme in terms of the required number of floating-point operations (FLOPs). Simulation results show that the proposed scheme achieves both a high performance and a low computational complexity.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Schober, Robert Prof. Dr.-Ing.
Lehrstuhl für Digitale Übertragung


Einrichtungen weiterer Autorinnen und Autoren

Huazhong University of Science & Technology
University of New South Wales (UNSW)


Zitierweisen

APA:
Wei, X., Peng, W., Wing Kwan Ng, D., Schober, R., & Jiang, T. (2018). Joint Estimation of Channel Parameters in Massive MIMO Systems via PARAFAC Analysis. In IEEE (Eds.), Proceedings of the 2018 International Conference on Computing, Networking and Communications (ICNC). Maui, HI, US.

MLA:
Wei, Xiao, et al. "Joint Estimation of Channel Parameters in Massive MIMO Systems via PARAFAC Analysis." Proceedings of the 2018 International Conference on Computing, Networking and Communications (ICNC), Maui, HI Ed. IEEE, 2018.

BibTeX: 

Zuletzt aktualisiert 2019-11-08 um 11:23