Paper Info
Title
Indoor Experiments of Real-Time MU-MIMO with CSI Feedback Scheme for Wireless LAN Systems
Abstract
This paper presents indoor experimental results on an implemented real-time downlink multiuser multiple-input multiple-output (DL-MU-MIMO) transceiver with a channel state information (CSI) feedback scheme for next generation wireless LAN systems. Estimated CSI is used at the access point (AP) transmitter to calculate transmit beamforming weight for DL-MU-MIMO transmission. A CSI compression scheme using discrete cosine transform (DCT) is proposed to reduce CSI feedback overhead. The transceiver performance is demonstrated and indoor experiments clarify that it is a feasible tool for real-time signal processing that improves system throughput over that of transceiver without a CSI compression scheme with simple digital signal processing of single-antenna stations (STAs).
Year
DOI
Venue
2012
10.1109/VETECS.2012.6239998
Vehicular Technology Conference
Keywords
Field
DocType
MIMO communication,antennas,array signal processing,discrete cosine transforms,feedback,multi-access systems,next generation networks,radio links,radio transceivers,real-time systems,wireless LAN,wireless channels,AP transmitter,CSI compression scheme,CSI feedback overhead,CSI feedback scheme,DCT,DL-MU-MIMO transceiver,DL-MU-MIMO transmission,STA,access point transmitter,channel state information,digital signal processing,discrete cosine transform,indoor experiment,next generation wireless LAN system,real-time MU-MIMO,real-time downlink multiuser multiple-input multiple-output transceiver,real-time signal processing,single-antenna station,system throughput,transceiver performance,transmit beamforming weight
Beamforming,Transmitter,Digital signal processing,Multi-user MIMO,Transceiver,Computer science,Discrete cosine transform,Computer network,Electronic engineering,Telecommunications link,Channel state information
Conference
ISSN
ISBN
Citations 
1550-2252 E-ISBN : 978-1-4673-0988-2
978-1-4673-0988-2
0
PageRank 
References 
Authors
0.34
10
4
Name
Order
Citations
PageRank
Koichi Ishihara1213.02
Asai, Y.200.68
Kudo, R.321.39
Ichikawa, T.43037.38