| Presentation | 2012/11/8 Development of Multiuser-MIMO Testbed with Limited CSI Feedback and Non-Linear Precoding Yasuyuki HATAKAWA, Tomoko MATSUMOTO, Satoshi KONISHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents the development of multiuser-Multiple Input Multiple Output testbed with limited channel state information (CSI) feedback and non-linear precoding. The testbed applies the CSI compression scheme which transforms the channel estimation results at frequency domain into the time domain, then designates and feeds back high power time elements. As a non-linear precoding scheme, Tomlinson-Harashima-Precoding is applied, which achieves the high performance under the realistic computational complexity. The result of experiment achieves over 20.5bps/Hz of spectrum efficiency when the base station with eight antennas and four user equipments with two antennas are connected by the cable. This result is 40 % higher than that of experiment using linear precoding. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multiuser MIMO / CSI compression scheme / Non-linear Precoding |
| Paper # | A・P2012-100,RCS2012-167 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/11/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of Multiuser-MIMO Testbed with Limited CSI Feedback and Non-Linear Precoding |
| Sub Title (in English) | |
| Keyword(1) | Multiuser MIMO |
| Keyword(2) | CSI compression scheme |
| Keyword(3) | Non-linear Precoding |
| 1st Author's Name | Yasuyuki HATAKAWA |
| 1st Author's Affiliation | KDDI R&D Laboratories Inc.() |
| 2nd Author's Name | Tomoko MATSUMOTO |
| 2nd Author's Affiliation | KDDI R&D Laboratories Inc. |
| 3rd Author's Name | Satoshi KONISHI |
| 3rd Author's Affiliation | KDDI R&D Laboratories Inc. |
| Date | 2012/11/8 |
| Paper # | A・P2012-100,RCS2012-167 |
| Volume (vol) | vol.112 |
| Number (no) | 286 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |