| Presentation | 2019-12-19 [Invited Lecture] Fujitsu's Approach to Millimeter-wave Subarray Beamforming Masahiko Shimizu, Hikaru Ishikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Fujitsu's approaches on millimeter-wave beamforming are described. At present, the beam forming of the subarray type seems to be practical from the viewpoint of power consumption and feasibility of the circuit. Therefore, an interleaved method with inter-subarray coding, which belongs to subarray type and is original, has been proposed, evaluated by using a prototype and presented at conferences and exhibitions. In this report, a principle of our proposed method is explained and performance of this method is evaluated. This method realizes high gain beam multiplexing by using a property of a grating lobe which is an issue for an array antenna. Performance of this method is compared with conventional localized method by system level simulations. Furthermore, a possibility of performance improvement of this system is investigated by showing a method near the performance limit. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Millimeter wave / Subarray type hybrid beamforming / Beam multiplexing |
| Paper # | NS2019-140,RCS2019-243 |
| Date of Issue | 2019-12-12 (NS, RCS) |
| Conference Information | |
| Committee | NS / RCS |
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| Conference Date | 2019/12/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Memorial Hall of Alumni(Engineering), Tokushima Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multi-hop/Relay/Cooperation, Disaster-resistant wireless network, Sensor/Mesh network, Ad-hoc network, D2D/M2M, Wireless network coding, Handover/AP switching/Connected cell control/Load balancing among base stations/Mobile network dynamic reconfiguration, QoS/QoE assurance, Wireless VoIP, IoT, Edge computing, etc. |
| Chair | Yoshikatsu Okazaki(NTT) / Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Akihiro Nakao(Univ. of Tokyo) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) |
| Secretary | Akihiro Nakao(Osaka Pref Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara(NTT) / Toshihiko Nishimura(Kyushu Univ.) |
| Assistant | Shinya Kawano(NTT) / 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 Network Systems / 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) | [Invited Lecture] Fujitsu's Approach to Millimeter-wave Subarray Beamforming |
| Sub Title (in English) | |
| Keyword(1) | Millimeter wave |
| Keyword(2) | Subarray type hybrid beamforming |
| Keyword(3) | Beam multiplexing |
| 1st Author's Name | Masahiko Shimizu |
| 1st Author's Affiliation | Fujitsu Limited(Fujitsu) |
| 2nd Author's Name | Hikaru Ishikawa |
| 2nd Author's Affiliation | Fujitsu Limited(Fujitsu) |
| Date | 2019-12-19 |
| Paper # | NS2019-140,RCS2019-243 |
| Volume (vol) | vol.119 |
| Number (no) | NS-344,RCS-345 |
| Page | pp.pp.37-42(NS), pp.37-42(RCS), |
| #Pages | 6 |
| Date of Issue | 2019-12-12 (NS, RCS) |