Presentation	2012/11/8 Experimental Evaluations for Downlink Multi-user MIMO with EVD-Based CSI Feedback in LTE-Advanced Teruo KAWAMURA, Yuki INOUE, Keisuke SAITO, Sinpei YASUKAWA, Hidehiro ANDOH,
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Abstract(in English)	In Long Term Evolution (LTE)-Advanced, which is specified as LTE Release 10 and beyond in the 3^ Generation Partnership Project (3GPP), enhanced multiple-input multiple-output (MIMO) techniques are supported to achieve much higher levels of system performance than those for LTE Release 8. Multi-user (MU)-MIMO was adopted as an essential technique to satisfy the International Mobile Telecommunication (IMT)-Advanced requirements for average cell and cell-edge spectrum efficiencies in the LTE-Advanced downlink. This paper presents the overview of the field and indoor experimental results on downlink 4-by-2 MU-MIMO which are evaluated by using the implemented LTE-Advanced transceiver from the viewpoints of the antenna configuration, fading correlation, eigenvalue and eigenvector of the propagation channel, and angular difference between spatially multiplexed users.
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Keyword(in English)	LTE-Advanced / Multi-user MIMO / Eigenvalue decomposition / CSI feedback / Experiment
Paper #	A・P2012-103,RCS2012-170
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Committee	RCS
Conference Date	2012/11/8(1days)
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Paper Information
Registration To	Radio Communication Systems (RCS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Experimental Evaluations for Downlink Multi-user MIMO with EVD-Based CSI Feedback in LTE-Advanced
Sub Title (in English)
Keyword(1)	LTE-Advanced
Keyword(2)	Multi-user MIMO
Keyword(3)	Eigenvalue decomposition
Keyword(4)	CSI feedback
Keyword(5)	Experiment
1st Author's Name	Teruo KAWAMURA
1st Author's Affiliation	Radio Access Network Development and Department, NTT DOCOMO, INC.()
2nd Author's Name	Yuki INOUE
2nd Author's Affiliation	Radio Access Network Development and Department, NTT DOCOMO, INC.
3rd Author's Name	Keisuke SAITO
3rd Author's Affiliation	Radio Access Network Development and Department, NTT DOCOMO, INC.
4th Author's Name	Sinpei YASUKAWA
4th Author's Affiliation	Radio Access Network Development and Department, NTT DOCOMO, INC.
5th Author's Name	Hidehiro ANDOH
5th Author's Affiliation	Radio Access Network Development and Department, NTT DOCOMO, INC.
Date	2012/11/8
Paper #	A・P2012-103,RCS2012-170
Volume (vol)	vol.112
Number (no)	286
Page	pp.pp.-
#Pages	6
Date of Issue