| Presentation | 2017-11-09 A Study on Array Beam Pattern of Multi-User MIMO Basestation Using Null-Space Dimension Expansion Makoto Taromaru, Hironori Ban, Mai Ohta, Daisuke Motegi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Some papers reported that a zero-forcing (ZF) adaptive array antenna or multi-user MIMO system at basestations can be robust against channel fluctuation by using null-space dimension expansion. It sets the combiningweights be orthogonal not only to the most recent channels of the interferences but also to the previous paster ones. This report discusses the mechanism to cancel the interferences focusing on the relation between the AoA (angle of arrival) of each the incident wave from the interference terminals and the array beam pattern formed in Rayleigh and Nakagami-Rice fading environment. Theoretical analysis shows that some nulls are formed toward each the AoA of the incident waves of the interference. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | adaptive array antenna / degree of freedom / MIMO / diversity / zero-forcing |
| Paper # | RCS2017-226 |
| Date of Issue | 2017-11-01 (RCS) |
| Conference Information | |
| Committee | AP / RCS |
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| Conference Date | 2017/11/8(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukuoka University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Jiro Hirokawa(Tokyo Tech.) / Hidekazu Murata(Kyoto Univ.) |
| Vice Chair | Ryo Yamaguchi(SoftBank) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) |
| Secretary | Ryo Yamaguchi(NTT DoCoMo) / Yukitoshi Sanada(Saitama Univ.) / Eisuke Fukuda(Toshiba) / Satoshi Suyama(Hokkaido Univ.) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) / Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Array Beam Pattern of Multi-User MIMO Basestation Using Null-Space Dimension Expansion |
| Sub Title (in English) | About Principle of Torelance Improvement against Channel Fluctuation by Orthogonalizing the Past Interference Channels |
| Keyword(1) | adaptive array antenna |
| Keyword(2) | degree of freedom |
| Keyword(3) | MIMO |
| Keyword(4) | diversity |
| Keyword(5) | zero-forcing |
| 1st Author's Name | Makoto Taromaru |
| 1st Author's Affiliation | Fukuoka university(Fukuoka Univ.) |
| 2nd Author's Name | Hironori Ban |
| 2nd Author's Affiliation | Fukuoka university(Fukuoka Univ.) |
| 3rd Author's Name | Mai Ohta |
| 3rd Author's Affiliation | Fukuoka university(Fukuoka Univ.) |
| 4th Author's Name | Daisuke Motegi |
| 4th Author's Affiliation | Fukuoka university(Fukuoka Univ.) |
| Date | 2017-11-09 |
| Paper # | RCS2017-226 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-284 |
| Page | pp.pp.123-127(RCS), |
| #Pages | 5 |
| Date of Issue | 2017-11-01 (RCS) |