Digital Predistortion Combined with Iterative Method for MIMO Transmitters

被引:1
作者
Yang, Moushu [1 ]
Wu, Yongle [1 ]
Hu, Xin [2 ]
Wang, Weimin [2 ]
机构
[1] Beijing Univ Posts & Telecommun, Sch Integrated Circuits, Beijing 100876, Peoples R China
[2] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
基金
中国国家自然科学基金;
关键词
crosstalk; digital predistortion (DPD); massive multiple input-multiple output (mMIMO); nonlinearity; power amplifiers (PAs); MODEL;
D O I
10.3390/electronics11233890
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this article, an auxiliary module is proposed to mitigate the crosstalk effect in multiple input-multiple output (MIMO) transmitters. Other branches do not need considering when linearizing the local branch, which reduces the complexity of the auxiliary module, and some branches can be linearized selectively to make the module application more flexible. In the end, the feasibility of the proposed algorithm is verified through the experimental platform. Experimental results demonstrate that for a 2 x 2 MIMO transmitter with -20 dB nonlinear crosstalk, the proposed DPD improves the adjacent channel power ratio (ACPR) more than 16 dB, and normalized mean square error (NMSE) more than 12.8 dB, which has similar performance to the PH model. The predistorter can be implemented with fewer coefficients by separating the crosstalk from the nonlinearity, enabling the technique to be used in 5G massive MIMO scenarios.
引用
收藏
页数:11
相关论文
共 19 条
[1]   A High-Performance Complexity Reduced Behavioral Model and Digital Predistorter for MIMO Systems With Crosstalk [J].
Abdelhafiz, Abubaker ;
Behjat, Laleh ;
Ghannouchi, Fadhel M. ;
Helaoui, Mohamed ;
Hammi, Oualid .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2016, 64 (05) :1996-2004
[2]  
Abe T., 2018, P 2018 15 INT S WIRE
[3]   Behavioral Modeling and Linearization of Crosstalk and Memory Effects in RF MIMO Transmitters [J].
Amin, Shoaib ;
Landin, Per N. ;
Handel, Peter ;
Ronnow, Daniel .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2014, 62 (04) :810-823
[4]   Crossover Digital Predistorter for the Compensation of Crosstalk and Nonlinearity in MIMO Transmitters [J].
Bassam, Seyed Aidin ;
Helaoui, Mohamed ;
Ghannouchi, Fadhel M. .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2009, 57 (05) :1119-1128
[5]   Analytical Foundations of Volterra Series [J].
Boyd, Stephen ;
Chua, L. O. ;
Desoer, C. A. .
IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION, 1984, 1 (03) :243-282
[6]   The Requirements, Challenges, and Technologies for 5G of Terrestrial Mobile Telecommunication [J].
Chen, Shanzhi ;
Zhao, Jian .
IEEE COMMUNICATIONS MAGAZINE, 2014, 52 (05) :36-43
[7]   SECTION-WISE PIECEWISE-LINEAR FUNCTIONS - CANONICAL REPRESENTATION, PROPERTIES, AND APPLICATIONS [J].
CHUA, LO ;
KANG, SM .
PROCEEDINGS OF THE IEEE, 1977, 65 (06) :915-929
[8]   Digital Predistortion for Multi-Antenna Transmitters Affected by Antenna Crosstalk [J].
Hausmair, Katharina ;
Landin, Per N. ;
Gustavsson, Ulf ;
Fager, Christian ;
Eriksson, Thomas .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2018, 66 (03) :1524-1535
[9]   Efficient linearisation technique for crosstalk and power amplifier non-linearity suitable for massive MIMO transmitters [J].
Jaraut, Praveen ;
Rawat, Meenakshi ;
Ghannouchi, Fadhel M. .
IET COMMUNICATIONS, 2020, 14 (09) :1485-1494
[10]   Digital predistortion of wideband signals based on power amplifier model with memory [J].
Kim, J ;
Konstantinou, K .
ELECTRONICS LETTERS, 2001, 37 (23) :1417-1418