Abstract

In this journal, we investigate the beam-domain channel estimation and power allocation in hybrid architecture massive multiple-input and multiple-output (MIMO) communication systems. First, we propose a low-complexity channel estimation method, which utilizes the beam steering vectors achieved from the direction-of-arrival (DOA) estimation and beam gains estimated by low-overhead pilots. Based on the estimated beam information, a purely analog precoding strategy is also designed. Then, the optimal power allocation among multiple beams is derived to maximize spectral efficiency. Finally, simulation results show that the proposed schemes can achieve high channel estimation accuracy and spectral efficiency.

Details

Title
Low-complexity beam-domain channel estimation and power allocation in hybrid architecture massive MIMO systems
Author
Chen, Xiao 1   VIAFID ORCID Logo  ; Zhang, Zaichen 1 ; Wu, Liang 1 ; Dang, Jian 1 

1  National Mobile Communications Research Laboratory, Southeast University, Nanjing, China 
Pages
1-9
Publication year
2019
Publication date
Nov 2019
Publisher
Springer Nature B.V.
ISSN
16871472
e-ISSN
16871499
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1186/s13638-019-1546-6
ProQuest document ID
2311933993
Copyright
EURASIP Journal on Wireless Communications and Networking is a copyright of Springer, (2019). All Rights Reserved., © 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.