,
,
,
,
(
南京邮电大学通信与信息工程学院,江苏 南京
;
南京邮电大学理学院,江苏 南京
)
:
MIMO
, ,
IQ
。
MIMO
IQ
,
。 , 。
:
MIMO
;
IQ
; ;;
:
TN929.5
:
A
10.11959/j.issn.1000-0801.2016131
WANG Jun
1
, DAI Jianxin
2
, CHENG Chonghu
1
, WANG Peng
1
, LI Sha
1
1. College of Telecommunications & Information Engineering, Nanjing University of Posts and
Telecommunications, Nanjing 210003, China
2. School of Science, Nanjing Universit y of Posts and Telecommunications, Nanjing 210023, China
Massive multiple-input multiple-output (MIMO) refers to the idea e qui pping cellular base stations with a
very l a rge number of antennas, and is a communication way of s evering several users. Widely-linear optimized block
diagonalization type precoding techniques was proposed to alleviate the impact of IQ imbalance in the downlink
massive multi-input multi-output systems. Numerical results show that sig nif i c a nt performance can be gain c o m pa red
to BD a nd WL-BD.
massive MIMO, IQ imbalance, precoding algorithm, error rate, block diagonaliz a t i o n precoding
algorithm
:
2015-12-28
; :
2016-04-09
: (
No.1501073B
); (
No.NY214108
)
Postdoctoral Research Funding Pr ogram of Jiangsu Province(No.1501073B), Project of Natural Science Foundation of
Nanjing University of Posts and Telecommunications(No.NY214108)
,
。 , ,
, ,
MIMO
(
multiple-input
multiple
-output
, ) 。
,
MIMO
,
,
[1-4]
。
,
MIMO
,
。
IQ
(
the in-phase and quadrature
,