Paper Info
Title
Channel-Covariance and Angle-of-Departure Aided Hybrid Precoding for Wideband Multiuser Millimeter Wave MIMO Systems
Abstract
Hybrid precoding is essential for millimeter wave (mmWave) multiple-input multiple output (MIMO) systems due to its inherent advantage of a high gain, whilst alleviating the high cost of hardware. However, most of the existing literature considered either the narrowband or wideband single-user mmWave MIMO scenarios. Hence in this paper we focus our attention on the more challenging design of hybrid Transmit Precoding (TPC) for wideband multiuser mmWave MIMO systems by exploiting the long-term channel’s covariance matrix and the angle of departure (AoD) information. Specifically, in the analog TPC designed, firstly, the analog TPC matrix having an infinite angular resolution is constructed based on the channel’s covariance matrix. Then, we also propose a non-uniformly spaced quantization codebook based analog TPC having finite angular resolution. Furthermore, a phase compensation operation is carried out to alleviate the effect of beam squint. As for the design of the digital TPC, a two-stage scheme is proposed to cancel the inter-user interference and to attain multiplexing gains. We study the effects of various parameters on the achievable sum rate and demonstrate with the aid of our simulation results that the proposed hybrid TPC is capable of achieving a similar performance to the excessive-complexity fully digital TPC.
Year
DOI
Venue
2019
10.1109/TCOMM.2019.2942307
IEEE Transactions on Communications
Keywords
Field
DocType
Wideband,MIMO communication,Covariance matrices,Radio frequency,Precoding,Interference,Narrowband
Wideband,Extremely high frequency,Mimo systems,Angle of departure,Computer science,Communication channel,Electronic engineering,Precoding,Covariance
Journal
Volume
Issue
ISSN
67
12
0090-6778
Citations 
PageRank 
References 
3
0.37
0
Authors
4
Name
Order
Citations
PageRank
Yun Chen1123.21
Da Chen29313.07
Tao Jiang32543230.12
Lajos Hanzo410889849.85