Presentation 2002/2/28
Downlink Nullforming by a Receiving Antenna Selection for a MIMO/SDMA channel
Toshihiko NISHIMURA, Yasushi TAKATORI, Takeo OHGANE, Yasutaka OGAWA, Keizo CHO,
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Abstract(in English) In this paper, we propose a novel downlink nullforming technique for space division multiple access(SDMA) in a multi-input multi-output(MIMO) channel where a basestation and all terminal stations have multiple antennas. In the SDMA system, simple beamforming is not efficient to achieve a good performance due to cochannel interference(CCI). Proposed method is based on nullforming and characterized by an antenna element selection at each terminal where the selected antenna pair satisfies the lowest spatial correlation condition in all combinations. The results obtained by the computer simulations show the selective diversity gain of the proposed method and its performance improvement due to joint detection at each terminal.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) SDMA / MIMO / Nullforming / Downlink / Joint detection(JD)
Paper # SST2001-103
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Committee SST
Conference Date 2002/2/28(1days)
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Paper Information
Registration To Spread Spectrum Technology (SST)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Downlink Nullforming by a Receiving Antenna Selection for a MIMO/SDMA channel
Sub Title (in English)
Keyword(1) SDMA
Keyword(2) MIMO
Keyword(3) Nullforming
Keyword(4) Downlink
Keyword(5) Joint detection(JD)
1st Author's Name Toshihiko NISHIMURA
1st Author's Affiliation Graduate School of Engineering, Hokkaido University()
2nd Author's Name Yasushi TAKATORI
2nd Author's Affiliation NTT Network Innovation Laboratories, Nippon Telegraph and Telephone corporation
3rd Author's Name Takeo OHGANE
3rd Author's Affiliation Graduate School of Engineering, Hokkaido University
4th Author's Name Yasutaka OGAWA
4th Author's Affiliation Graduate School of Engineering, Hokkaido University
5th Author's Name Keizo CHO
5th Author's Affiliation NTT Network Innovation Laboratories, Nippon Telegraph and Telephone corporation
Date 2002/2/28
Paper # SST2001-103
Volume (vol) vol.101
Number (no) 677
Page pp.pp.-
#Pages 6
Date of Issue