| Presentation | 2010-03-05 Performance improvement of OFDM dynamic fading equalization using time-resolution scheme Hiroyuki HAYASHI, Eiji OKAMOTO, Yasunori IWANAMI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | OFDM (orthogonal frequency division multiplexing) can mitigate multipath fading. However, in mobile communication environments, a time-selective fading deteriorates the quality of communication significantly. To estimate fading fluctuation accurately, we have proposed an estimation direction switching scheme with adaptive switching of time-to-frequency estimation direction by estimating a fading speed and delay spread. However, in this scheme, there is a degradation caused by the time discontinuousness in OFDM frames. In this paper, we propose a scattered pilot-based fading equalization scheme which applies a time resolution improvement scheme that improves the performances of fading equalization by interpolating the fluctuation of impulse responses between consecutive OFDM frames to this scheme. The performances of the proposed scheme are evaluated by the computer simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / FFT / time-selective fading / channel equalization / scattered pilot symbol |
| Paper # | RCS2009-307 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2010/2/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| 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) | Performance improvement of OFDM dynamic fading equalization using time-resolution scheme |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | FFT |
| Keyword(3) | time-selective fading |
| Keyword(4) | channel equalization |
| Keyword(5) | scattered pilot symbol |
| 1st Author's Name | Hiroyuki HAYASHI |
| 1st Author's Affiliation | () |
| 2nd Author's Name | Eiji OKAMOTO |
| 2nd Author's Affiliation | |
| 3rd Author's Name | Yasunori IWANAMI |
| 3rd Author's Affiliation | |
| Date | 2010-03-05 |
| Paper # | RCS2009-307 |
| Volume (vol) | vol.109 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |