| Presentation | 2020-01-24 Precoder Design Algorithm using Spatial Signal Synthesis with Multiple Antenna Subset Selection for Hybrid MIMO System Daichi Tamate, Yukitoshi Sanada, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, a precoder design algorithm using spatial signal synthesis with selected multiple antennas for hybrid multiple-input multiple-out-put (MIMO) systems is proposed. The hybrid MIMO systems are expected to be implemented in high frequency bands. To reduce power consumption and increase the bandwidth of a transmit signal, the resolution of phase shifters and the number of quantization levels in digital-analog (D/A) converters have to be limited. A baseband precoder needs to take the effect of quantization into account. On the other hand, when the number of transmit antennas is larger than that of receive antennas, spatial signal synthesis can be realized. The selection of antenna sets also needs to take the effect of quantization into account. It is shown in this reportthat the proposed scheme improves the spectral efficiency by combining spatial signal synthesis through multiple antenna subset selection and by precoder design with Gibbs pudding. Numerical results obtained through computer simulation show that the proposed scheme with two antenna subsets of four transmit antennas and two receive antennas improves the spectrum efficiency by about 1.0-1.5 bit/s/Hz. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | TAS / Hybrid MIMO / precoder / Gibbs sampling / DACs |
| Paper # | IT2019-60,SIP2019-73,RCS2019-290 |
| Date of Issue | 2020-01-16 (IT, SIP, RCS) |
| Conference Information | |
| Committee | IT / SIP / RCS |
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| Conference Date | 2020/1/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima City Youth Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Jun Muramatsu(NTT) / Naoyuki Aikawa(TUS) / Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Tadashi Wadayama(Nagoya Inst. of Tech.) / Kazunori Hayashi(Osaka City Univ) / Yukihiro Bandou(NTT) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) |
| Secretary | Tadashi Wadayama(Saga Univ.) / Kazunori Hayashi(Nagano Pref Inst. of Tech.) / Yukihiro Bandou(Hiroshima Univ.) / Satoshi Suyama(Hosei Univ.) / Fumiaki Maehara(NTT) / Toshihiko Nishimura(Kyushu Univ.) |
| Assistant | Hideki Yagi(UEC) / Kenjiro Sugimoto(Waseda Univ.) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Information Theory / Technical Committee on Signal Processing / 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) | Precoder Design Algorithm using Spatial Signal Synthesis with Multiple Antenna Subset Selection for Hybrid MIMO System |
| Sub Title (in English) | |
| Keyword(1) | TAS |
| Keyword(2) | Hybrid MIMO |
| Keyword(3) | precoder |
| Keyword(4) | Gibbs sampling |
| Keyword(5) | DACs |
| 1st Author's Name | Daichi Tamate |
| 1st Author's Affiliation | Keio University(Keio Univ.) |
| 2nd Author's Name | Yukitoshi Sanada |
| 2nd Author's Affiliation | Keio University(Keio Univ.) |
| Date | 2020-01-24 |
| Paper # | IT2019-60,SIP2019-73,RCS2019-290 |
| Volume (vol) | vol.119 |
| Number (no) | IT-376,SIP-377,RCS-378 |
| Page | pp.pp.135-141(IT), pp.135-141(SIP), pp.135-141(RCS), |
| #Pages | 7 |
| Date of Issue | 2020-01-16 (IT, SIP, RCS) |