Paper Info
Title
A simple method of transmitting stream adaptation for fixed-matrix-size precoding on MU-MIMO transmission
Abstract
During the operation of multiuser multiple-input-multiple output (MU-MIMO) algorithms, some antennas of BS or UEs may neither transmit nor receive signals due to the long distance or unexpected damages. Therefore, the BS cannot obtain the channel state information (CSI) from/to these antennas. Without these CSI, the performance of algorithm is degraded. We call this effect as `broken antenna effect (BAE)'. To cope with this issue, this paper proposes a process to regularize the channel matrix by replacing the missing CSI with zero(s) and setting nonzero values to diagonal elements. Then, it is confirmed through computer simulation that the proposed method can adjust the number of transmitting parallel streams according to the number of `broken' antennas, and provide MU-MIMO transmission with maximum diversity order without any change of the precoding process.
Year
DOI
Venue
2012
10.1109/WCNC.2012.6213993
WCNC
Keywords
Field
DocType
base station,channel matrix,channel state information,user equipment,csi,mu-mimo transmission,fixed-matrix-size precoding process,precoding,matrix algebra,antenna arrays,multiuser multiple-input-multiple output algorithm,wireless channels,mimo communication,broken antenna effect,parallel stream adaptation transmission method,computer simulation,diagonal elements,maintenance engineering,vectors,mimo
Diagonal,Topology,Multi-user MIMO,Matrix (mathematics),Control theory,Computer science,Communication channel,MIMO,Real-time computing,Antenna effect,Precoding,Channel state information
Conference
ISSN
ISBN
Citations 
1525-3511
978-1-4673-0436-8
0
PageRank 
References 
Authors
0.34
6
5
Name
Order
Citations
PageRank
Yafei Hou1194.47
Satoshi Sonobe220.76
Kazuto Yano3189.01
Masahiro Uno4193.24
Kiyoshi Kobayashi596.48