| Presentation | 2006-10-19 Extension of Optimum-Weighted LS Channel Estimation to Multi-Antenna Systems Toshiaki KOIKE, Hajime KANZAKI, Susumu YOSHIDA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A mobile radio communications system often experiences a considerable signal fluctuation due to timevarying fading channels. In an extremely fast fading, we cannot achieve an accurate channel estimation in general. We proposed an optimum weighting for a higher-ordered least-squares channel estimation which optimizes the weighting coefficients automatically. In this paper, we extend this channel estimation method into multiple-input multiple-output (MIMO) systems, and prove that the zeroth-ordered scheme minimizes a channel estimation error. Furthermore, we propose an efficient weights generation method for decision-directed channel tracking. Through performance analyses, we demonstrate that the proposed scheme offers an accurate channel estimation with a reasonable computational complexity even in fast fading channels. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / Fast fading / High-ordered channel estimation / Least-squares method |
| Paper # | RCS2006-134 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/10/12(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) | Extension of Optimum-Weighted LS Channel Estimation to Multi-Antenna Systems |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | Fast fading |
| Keyword(3) | High-ordered channel estimation |
| Keyword(4) | Least-squares method |
| 1st Author's Name | Toshiaki KOIKE |
| 1st Author's Affiliation | Graduate School of Infomatics, Kyoto University:JSPS:Visiting Scholar at Harvard University() |
| 2nd Author's Name | Hajime KANZAKI |
| 2nd Author's Affiliation | Graduate School of Infomatics, Kyoto University |
| 3rd Author's Name | Susumu YOSHIDA |
| 3rd Author's Affiliation | Graduate School of Infomatics, Kyoto University |
| Date | 2006-10-19 |
| Paper # | RCS2006-134 |
| Volume (vol) | vol.106 |
| Number (no) | 305 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |