Paper Info
Title
Papr-Limited Precoding In Massive Mimo Systems With Reflect- And Transmit-Array Antennas
Abstract
Conventional hybrid analog-digital architectures for millimeter-wave massive multiple-input multiple-output (MIMO) systems suffer from poor scalability and high implementational costs. The former is caused by the high power loss in the analog network, and the latter is due to the fact that classic MIMO transmission techniques require power amplifiers with high back-offs.This paper proposes a novel hybrid analog-digital architecture which addresses both of these challenges. This architecture implements the analog front-end via a passive reflect- or transmit-array to resolve the scalability issue. To keep the system cost-efficient, a digital precoder is designed whose peak-to-average power ratio (PAPR) on each active antenna is tunable. Using the approximate message passing algorithm, this precoder is implemented with tractable computational complexity. The proposed architecture allows for the use of power amplifiers with low back-offs which reduces the overall radio frequency cost of the system. Numerical results demonstrate that for low PAPRs, significant performance enhancements are achieved compared to the state of the art.
Year
DOI
Venue
2019
10.1109/IEEECONF44664.2019.9048889
CONFERENCE RECORD OF THE 2019 FIFTY-THIRD ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS
Keywords
DocType
ISSN
Massive MIMO, mmWave, hybrid analog-digital precoding, regularized least-squares, reflect- and transmit-arrays, approximate message passing
Conference
1058-6393
Citations 
PageRank 
References 
0
0.34
11
Authors
6
Name
Order
Citations
PageRank
Ali Bereyhi13714.09
Vahid Jamali239537.50
R. Muller31206124.92
georg fischer45124.65
Robert Schober58448488.41
A. M. Tulino61362101.89