Title
Low-Complexity Downlink Channel Estimation for Millimeter-Wave FDD Massive MIMO Systems
Abstract
Downlink channel estimation in millimeter-wave (mmWave) frequency division duplex (FDD) massive multiple input multiple output (MIMO) systems is investigated in this letter. Considering the sparse scattering nature of the mmWave channels, the estimation problem is formulated as a sparse parameter estimation problem. A low-complexity orthogonal matching pursuit (OMP) estimation algorithm is proposed by exploiting the inherent correlation in the signal angular domain and the statistical scattering information. Analysis and simulation results verify that the proposed algorithm can achieve more than 90% complexity reduction with comparable or even better estimation performance than the existing OMP-based algorithms.
Year
DOI
Venue
2019
10.1109/lwc.2019.2907955
IEEE Wireless Communications Letters
Keywords
Field
DocType
Channel estimation,Scattering,Matching pursuit algorithms,MIMO communication,Dictionaries,Estimation,Downlink
Matching pursuit,Extremely high frequency,Mathematical optimization,Communication channel,MIMO,Algorithm,Reduction (complexity),Scattering,Estimation theory,Mathematics,Telecommunications link
Journal
Volume
Issue
ISSN
8
4
2162-2337
Citations 
PageRank 
References 
2
0.39
0
Authors
4
Name
Order
Citations
PageRank
Xianda Wu131.07
Guang-Hua Yang215222.61
Fen Hou351342.94
Shaodan Ma466671.25