| Presentation | 2006-01-26 A study on adaptive control of forgetting factor for decision feedback channel estimation in COFDM transmission Haruhito YOSHIDA, Fumiaki MAEHARA, Fumio TAKAHATA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Decision feedback channel estimation is one of the promising channel estimation schemes for orthogonal frequency division multiplexing (OFDM) transmission under fast fading channels. In decision feedback channel estimation, the time domain averaging filter is essential to suppress the noise on the channel estimates and the forgetting factor of the averaging filter needs to be given appropriately according to the channel variation to provide good performance. This paper proposes an adaptive forgetting factor control method using the metrics of Viterbi decoder for coded OFDM transmission. Numerical results given by computer simulation show the effectiveness of the proposed scheme compared with the conventional scheme using the fixed forgetting factor. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / decision feedback / channel estimation / forward error correction (FEC) / first-order averaging filter / forgetting factor |
| Paper # | RCS2005-127 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/1/19(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) | A study on adaptive control of forgetting factor for decision feedback channel estimation in COFDM transmission |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | decision feedback |
| Keyword(3) | channel estimation |
| Keyword(4) | forward error correction (FEC) |
| Keyword(5) | first-order averaging filter |
| Keyword(6) | forgetting factor |
| 1st Author's Name | Haruhito YOSHIDA |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Waseda University() |
| 2nd Author's Name | Fumiaki MAEHARA |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Waseda University |
| 3rd Author's Name | Fumio TAKAHATA |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Waseda University |
| Date | 2006-01-26 |
| Paper # | RCS2005-127 |
| Volume (vol) | vol.105 |
| Number (no) | 559 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |