| Presentation | 2006-04-21 A Study on Reduction of the Amount of Channel State Information Feedback in MIMO-OFDM Eigenbeam-Space Division Multiplexing Systems Yusuke OHWATARI, Yasutaka OGAWA, Toshihiko NISHIMURA, Takeo OHGANE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | MIMO space division multiplexing in an OFDM system (MIMO-OFDM) can achive high-data-rate transmission without additional frequency spectra. Furthermore, eigenbeam-space division multiplexing (E-SDM) which is also called the singular value decomposition (SVD) algorithm can provide maximum throughput in the MIMO channel when channel state information (CSI) is available at the transmitter. When the uplink and downlink channels are not reciprocal as in a FDD system, we need to feed back the CSI from the receiver to the transmitter. However, capacity is limited because CSI feedback is needed for each subcarrier in an OFDM system. This paper proposes the feedback of the time-domain channel estimated using the minimum mean square error method. The proposed method can reduce the amount of feedback information, and reveals better bit error rate performance than the other schemes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO system / Eigenbeam-space division multiplexing / OFDM / Channel state information / Amount of feedback information |
| Paper # | RCS2006-7 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/4/14(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | A Study on Reduction of the Amount of Channel State Information Feedback in MIMO-OFDM Eigenbeam-Space Division Multiplexing Systems |
| Sub Title (in English) | |
| Keyword(1) | MIMO system |
| Keyword(2) | Eigenbeam-space division multiplexing |
| Keyword(3) | OFDM |
| Keyword(4) | Channel state information |
| Keyword(5) | Amount of feedback information |
| 1st Author's Name | Yusuke OHWATARI |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Yasutaka OGAWA |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 3rd Author's Name | Toshihiko NISHIMURA |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 4th Author's Name | Takeo OHGANE |
| 4th Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2006-04-21 |
| Paper # | RCS2006-7 |
| Volume (vol) | vol.106 |
| Number (no) | 25 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |