Presentation 2011-01-20
Performance Evaluation of GBD under Channel Estimation Errors for MU-MIMO Downlink
Tomoki SADA, Toshihiko NISHIMURA, Takeo OHGANE, Yasutaka OGAWA,
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Abstract(in English) In a downlink (broadcast channel) of multiuser MIMO systems, we need to suppress the inter-user interference (IUI). It is known that block diagonalization and MMSE precoding are typical schemes for IUI suppression. In addition, we have proposed generalized block diagonalization (GBD) to achieve both high transmit diversity gain and IUI space limiting with a partial nulling concept. In this paper, we evaluate the impact of channel estimation error on the these precoding methods by computer simulations for BER performance.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multiuser MIMO / Broadcast Channel / Inter-User Interference / Block Diagonalization / MMSE precoding
Paper # SIP2010-70,RCS2010-200
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Committee RCS
Conference Date 2011/1/13(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Performance Evaluation of GBD under Channel Estimation Errors for MU-MIMO Downlink
Sub Title (in English)
Keyword(1) Multiuser MIMO
Keyword(2) Broadcast Channel
Keyword(3) Inter-User Interference
Keyword(4) Block Diagonalization
Keyword(5) MMSE precoding
1st Author's Name Tomoki SADA
1st Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University()
2nd Author's Name Toshihiko NISHIMURA
2nd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
3rd Author's Name Takeo OHGANE
3rd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
4th Author's Name Yasutaka OGAWA
4th Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
Date 2011-01-20
Paper # SIP2010-70,RCS2010-200
Volume (vol) vol.110
Number (no) 369
Page pp.pp.-
#Pages 6
Date of Issue