Presentation 2016-08-23
Spatial Characteristic Evaluation of Antenna Arrangement Suitable for MIMO Full-Duplex
Masakuni Tsunezawa, Naoki Honma, Kazuya Takahashi, Kentaro Nishimori,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to realize full duplex radio communication, we have researched an interference reduction technique, which spatially separates transmitting~(Tx) and receiving~(Rx) arrays pf the multiple-input multiple-output~(MIMO) antennas. We have proposed a combination technique of an end-fire antenna arrangement, which arranges all of elements of Tx and Rx array in line, and a null-steering by an eigen-beamforming technique. Some numerical and experimental results showed the proposed method greatly reduces the interference with consuming the least of degrees of MIMO freedom. This report evaluates spatial capacity distributions of a base station with the proposed technique. As a simple evaluation for a line-of-sight~(LOS) environment, a simple electro-magnetic calculation is performed, which only considers propagation loss and phases on the free space. As a realistic evaluation, a ray trace simulation is used, where an outdoor multi-path environment is assumed. Numerical results clarified an effect of a null directivity to an end-fire direction on a spatial distribution of a channel capacity with multi-path in the proposed system.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) MIMO / full duplex / interference reduction / ray trace analysis
Paper # AP2016-81
Date of Issue 2016-08-15 (AP)

Conference Information
Committee AP
Conference Date 2016/8/22(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Nagasaki Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Student session, New style session, Antennas and Propagation
Chair Keizo Cho(Chiba Inst. of Tech.)
Vice Chair Hisato Iwai(Doshisha Univ.)
Secretary Hisato Iwai(Niigata Univ.)
Assistant Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric)

Paper Information
Registration To Technical Committee on Antennas and Propagation
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Spatial Characteristic Evaluation of Antenna Arrangement Suitable for MIMO Full-Duplex
Sub Title (in English)
Keyword(1) MIMO
Keyword(2) full duplex
Keyword(3) interference reduction
Keyword(4) ray trace analysis
1st Author's Name Masakuni Tsunezawa
1st Author's Affiliation Iwate University(Iwate Univ.)
2nd Author's Name Naoki Honma
2nd Author's Affiliation Iwate University(Iwate Univ.)
3rd Author's Name Kazuya Takahashi
3rd Author's Affiliation Iwate University(Iwate Univ.)
4th Author's Name Kentaro Nishimori
4th Author's Affiliation Niigata University(Niigata Univ.)
Date 2016-08-23
Paper # AP2016-81
Volume (vol) vol.116
Number (no) AP-186
Page pp.pp.73-78(AP),
#Pages 6
Date of Issue 2016-08-15 (AP)