| Presentation | 2013-11-21 Experimental Evaluation of Implicit Feedback on Multiuser MIMO-OFDM Systems Hayato FUKUZONO, Tomoki MURAKAMI, Riichi KUDO, Yasushi TAKATORI, Masato MIZOGUCHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Calibration of uplink channel state information (CSI) is necessary for downlink transmit beamforming on downlink multiuser multiple-input multiple-output (MIMO) systems with implicit feedback. The authors propose weighted-combining calibration (WCC), which calculates multiple calibration coefficients and then combines them with weights to improve calibration accuracy. In this paper, we develop a downlink multiuser MIMO-orthogonal frequency division multiplexing (OFDM) system with the implicit feedback using measurement hardware for experimental evaluation over the air, and evaluate performance of WCC. The evaluation shows that WCC realizes high accurate transmit beamforming on the actual experiment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | downlink multiuser MIMO / OFDM / implicit feedback / calibration / experiment |
| Paper # | RCS2013-187 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2013/11/13(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) | Experimental Evaluation of Implicit Feedback on Multiuser MIMO-OFDM Systems |
| Sub Title (in English) | |
| Keyword(1) | downlink multiuser MIMO |
| Keyword(2) | OFDM |
| Keyword(3) | implicit feedback |
| Keyword(4) | calibration |
| Keyword(5) | experiment |
| 1st Author's Name | Hayato FUKUZONO |
| 1st Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation() |
| 2nd Author's Name | Tomoki MURAKAMI |
| 2nd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 3rd Author's Name | Riichi KUDO |
| 3rd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 4th Author's Name | Yasushi TAKATORI |
| 4th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 5th Author's Name | Masato MIZOGUCHI |
| 5th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| Date | 2013-11-21 |
| Paper # | RCS2013-187 |
| Volume (vol) | vol.113 |
| Number (no) | 301 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |