| Presentation | 2017-06-23 Adaptive Initial Interpolation Vector Setting Method for Iterative Time-Domain Compression Method of MIMO Channel State Information Masafumi Iizuka, Kiichi Tateishi, Kenichi Higuchi, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we investigate the adaptive setting for initial interpolation vector in our previously reported iterative time-domain compression method of multiple-input multiple-output (MIMO) channel state information (CSI). The iterative MIMO-CSI compression method is based on the time-domain CSI compression with frequency-domain CSI bundling and interpolation for all combinations of transmitter and receiver antennas. In our previous work, the generation method of the initial interpolation vector, which reuse the actual frequency-domain CSI variation, was proposed in order to take into account the periodical channel variation in frequency domain. However, in this method, an appropriate length of the interpolation vector is dependent on the delay spread of the channel. In order to address this problem, this paper proposes the adaptive control of the length of the interpolation vector based on the correlation of the CSI vector in frequency domain. The numerical results show that the proposed method can further improve the accuracy of the compressed CSI or enhance the CSI compression capability of the previous method which assumes fixed length of the interpolation vector. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / beamforming / precoding / channel state information / CSI / compression |
| Paper # | RCS2017-84 |
| Date of Issue | 2017-06-14 (RCS) |
| Conference Information | |
| Committee | RCS |
|---|---|
| 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 |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Adaptive Initial Interpolation Vector Setting Method for Iterative Time-Domain Compression Method of MIMO Channel State Information |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | beamforming |
| Keyword(3) | precoding |
| Keyword(4) | channel state information |
| Keyword(5) | CSI |
| Keyword(6) | compression |
| 1st Author's Name | Masafumi Iizuka |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| 2nd Author's Name | Kiichi Tateishi |
| 2nd Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 3rd Author's Name | Kenichi Higuchi |
| 3rd Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| Date | 2017-06-23 |
| Paper # | RCS2017-84 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-103 |
| Page | pp.pp.203-208(RCS), |
| #Pages | 6 |
| Date of Issue | 2017-06-14 (RCS) |