Presentation 2006-01-26
A study on transmit-antenna selection for multiuser-MIMO uplink
Junya OHKAWARA, Toshihiko NISHIMURA, Takeo OHGANE, Yasutaka OGAWA,
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Abstract(in English) In this paper, we discuss methods of transmit-antenna selection for uplink multiuser MIMO-SDM systems. In multiuser MIMO-SDM systems, signal detection quality at a basestation is degraded by cochannel interference, and depends on the number of transmit antennas of each user. In this paper, we propose a novel method for antenna selection to increase diversity gain. The criterion of antenna selection is based on capacity using spatial filter output. Simulation results show that frame error rate performance in the multiuser MIMO-SDM systems is improved by the proposed method. In addition, we show the advantage of diversity gain to select the number of transmit antennas at each user.
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Keyword(in English) MIMO systems / multiuser access / transmit-anntena selection / capacity
Paper # RCS2005-135
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Committee RCS
Conference Date 2006/1/19(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) A study on transmit-antenna selection for multiuser-MIMO uplink
Sub Title (in English)
Keyword(1) MIMO systems
Keyword(2) multiuser access
Keyword(3) transmit-anntena selection
Keyword(4) capacity
1st Author's Name Junya OHKAWARA
1st Author's Affiliation Graduate School of Infomation Science and Technology, Hokkaido University()
2nd Author's Name Toshihiko NISHIMURA
2nd Author's Affiliation Graduate School of Infomation Science and Technology, Hokkaido University
3rd Author's Name Takeo OHGANE
3rd Author's Affiliation Graduate School of Infomation Science and Technology, Hokkaido University
4th Author's Name Yasutaka OGAWA
4th Author's Affiliation Graduate School of Infomation Science and Technology, Hokkaido University
Date 2006-01-26
Paper # RCS2005-135
Volume (vol) vol.105
Number (no) 559
Page pp.pp.-
#Pages 6
Date of Issue