| Presentation | 2019-06-19 A Fundamental Study on Downlink Channel Estimation in an FDD System Based on Impulse Response Estimation Shiori Tosaka, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane, Junichiro Hagiwara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In an FDD system, downlink channel state information (CSI) is necessary at a base station for efficient transmission. The CSI estimated at user equipment using downlink training symbols is fed back to the base station. This method, however, reduces the transmission efficiency. In this paper, we propose a method to obtain downlink CSI at a base station based on impulse response estimation using uplink pilot symbols in a wideband OFDM system. We apply FISTA, an algorithm of compressed sensing, to estimate the impulse response. We evaluate the basic performance in a SISO system and compare the estimation performance with that of IDFT. It will be shown that the downlink channel estimation by FISTA is accurate and better than that by IDFT. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | FDD / channel estimation / compressed sensing / IDFT |
| Paper # | RCS2019-40 |
| Date of Issue | 2019-06-12 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2019/6/19(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Miyakojima Hirara Port Terminal Building |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
| Chair | Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) |
| Secretary | Satoshi Suyama(NTT) / Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura |
| Assistant | Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Shinya Kumagai(Fujitsu Labs.) |
| 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) | A Fundamental Study on Downlink Channel Estimation in an FDD System Based on Impulse Response Estimation |
| Sub Title (in English) | |
| Keyword(1) | FDD |
| Keyword(2) | channel estimation |
| Keyword(3) | compressed sensing |
| Keyword(4) | IDFT |
| 1st Author's Name | Shiori Tosaka |
| 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.) |
| 5th Author's Name | Junichiro Hagiwara |
| 5th Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| Date | 2019-06-19 |
| Paper # | RCS2019-40 |
| Volume (vol) | vol.119 |
| Number (no) | RCS-90 |
| Page | pp.pp.19-24(RCS), |
| #Pages | 6 |
| Date of Issue | 2019-06-12 (RCS) |