| Presentation | 2018-02-28 A Distributed Antenna Downlink System using Linearly Precoded MU-MIMO Nobuaki Shimakawa, Yasunori Iwanami, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, Muti-User MIMO (MU-MIMO) downlink system which uses multiple antennas at Base Station (BS) and accommodates multiple User Equipments (UE’s) with multiple receive antennas attracts much attention. It can achieve a high channel capacity although it requires the channel state information both at BS and each UE. There exist linear and non-linear MU-MIMO downlink schemes, but the linear scheme is considered more easily to be implemented and adjusted. Linear Block Diagonalization (BD) has been proposed in order to cancel the Inter-User Interference (IUI) completely and combined with the Eigenbeam-Space Division Multiplexing (E-SDM). In this paper, by noting that the block size of each UE channel matrix in BD becomes (number of receive antennas of each UE) × (nullity of the matrix constituted by other UE’s), we design the BD + E-SDM scheme for distributed antenna system assuming that multiple RRH’s (Remote Radio Heads) are connected to BS using RoF (Radio over Fiber). We compared the distributed deployment of transmit antennas with the centralized deployment and show the superiority of MU-MIMO downlink system with distributed transmit antennas. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MU-MIMO / Block Diagonalization / E-SDM / Distributed Antennas / RRH / RoF / Massive MIMO |
| Paper # | RCS2017-317 |
| Date of Issue | 2018-02-21 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2018/2/28(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Hidekazu Murata(Kyoto Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Tadao Nakagawa(Tottori Univ.) |
| Vice Chair | Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) / Satoshi Denno(Okayama Univ.) / Makoto Hamaminato(Fujitsu labs.) |
| Secretary | Yukitoshi Sanada(Toshiba) / Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NICT) / Masayuki Ariyoshi(ATR) / Suguru Kameda(NICT) / Satoshi Denno(Kyoto Univ.) / Makoto Hamaminato |
| Assistant | Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(NIT, Akashi College) / Kentaro Saito(Tokyo Inst. of Tech.) / Hiromasa Yamauchi(Fujitsu labs.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Distributed Antenna Downlink System using Linearly Precoded MU-MIMO |
| Sub Title (in English) | |
| Keyword(1) | MU-MIMO |
| Keyword(2) | Block Diagonalization |
| Keyword(3) | E-SDM |
| Keyword(4) | Distributed Antennas |
| Keyword(5) | RRH |
| Keyword(6) | RoF |
| Keyword(7) | Massive MIMO |
| 1st Author's Name | Nobuaki Shimakawa |
| 1st Author's Affiliation | Nagoya Institute of Technology(N.I.T.) |
| 2nd Author's Name | Yasunori Iwanami |
| 2nd Author's Affiliation | Nagoya Institute of Technology(N.I.T.) |
| Date | 2018-02-28 |
| Paper # | RCS2017-317 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-456 |
| Page | pp.pp.1-6(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-02-21 (RCS) |