| Presentation | 2017-06-22 Fundamental Considerations on Computational Complexity Reduction Using Receive Matrix Interpolation in a MIMO-OFDM System Kensei Saito, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In multiple-input multiple-output (MIMO) systems, separation of multiple streams is often performed by multiplying a weight matrix at the receiving side. When the number of transmit and receive antennas increases, the amount of calculations for obtaining the optimum weight matrix increases. In addition, in an OFDM system, since the weight matrix needs to be calculated for each subcarrier, this becomes a more serious problem. We can reduce the amount of calculations by an interpolation technique. We obtain the optimum weight matrices for a part of subcarriers, and for the remaining subcarriers, we calculate the weight matrices using interpolation. In this paper, we examine interpolation techniques and evaluate the performance for non-Massive MIMO environments where we do not have many transmit and receive antennas. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO System / OFDM / Spatial Multiplexing / Zero-Forcing / DFT |
| Paper # | RCS2017-70 |
| Date of Issue | 2017-06-14 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2017/6/21(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ishigaki Shoukou Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
| Chair | Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) |
| Secretary | Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara |
| Assistant | Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) |
| Paper Information | |
| Registration To | 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) | Fundamental Considerations on Computational Complexity Reduction Using Receive Matrix Interpolation in a MIMO-OFDM System |
| Sub Title (in English) | |
| Keyword(1) | MIMO System |
| Keyword(2) | OFDM |
| Keyword(3) | Spatial Multiplexing |
| Keyword(4) | Zero-Forcing |
| Keyword(5) | DFT |
| 1st Author's Name | Kensei Saito |
| 1st Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 2nd Author's Name | Yasutaka Ogawa |
| 2nd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 3rd Author's Name | Toshihiko Nishimura |
| 3rd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 4th Author's Name | Takeo Ohgane |
| 4th Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| Date | 2017-06-22 |
| Paper # | RCS2017-70 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-103 |
| Page | pp.pp.121-126(RCS), |
| #Pages | 6 |
| Date of Issue | 2017-06-14 (RCS) |