| Presentation | 2007/6/7 A DCT-based Decision Feedback Channel estimation Method in OFDM transmission under Fast Fading Environment Akeo SATOH, Shingo YOSHIZAWA, Yoshikazu MIYANAGA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this report, we propose a new effective decision feedback channel estimation method in OFDM-based wireless communication under fast fading environment. The propagation channels are quite variable during OFDM symbols in fast fading environment. The combination of estimating channels at each symbol and averaging their channels using a first-order filter is effective to cope with such a situation. The proposed method introduces a discrete cosine transform (DCT)-based noise reduction to suppress estimate errors by the conventional method. It improves channel estimate accuracy and communication performance. The effectiveness of the proposed method is shown by computer simulation results in PER, which are based on the IEEE802.11a standard. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / Forgetting Factor / DCT / Channel Estimation |
| Paper # | SIS2007-8 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2007/6/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A DCT-based Decision Feedback Channel estimation Method in OFDM transmission under Fast Fading Environment |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | Forgetting Factor |
| Keyword(3) | DCT |
| Keyword(4) | Channel Estimation |
| 1st Author's Name | Akeo SATOH |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Shingo YOSHIZAWA |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 3rd Author's Name | Yoshikazu MIYANAGA |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2007/6/7 |
| Paper # | SIS2007-8 |
| Volume (vol) | vol.107 |
| Number (no) | 93 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |