| Presentation | 2003/6/13 A Scattered Pilot OFDM Turbo Equalization Reception for Multipath Environments with Delay Difference Greater than Guard Interval Yuta SAGAE, Satoshi SUYAMA, Hiroshi SUZUKI, Kazuhiko FUKAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a scattered pilot OFDM receiver with turbo equalization that can effectively cancel both inter-symbol interference (ISI) and inter-carrier interference (ICI). OFDM transmissions generally suffer from severe degradation due to ISI to the adjacent OFDM symbols and that of ICI within the same symbol in multipath fading environments with the delay difference greater than the guard interval (GI). The proposed OFDM receiver consists of a coherent detection unit, a turbo equalization unit and channel estimators for the respective units. The turbo equalization unit consists of a decision feedback equalizer (DFE) for removing ISI and a turbo equalizer for ICI. The channel estimator exploits the log-likelihood ratio fed back from the MAP decoder so as to estimate a large delay profile that the conventional channel estimators cannot estimate by using the scattered pilot only. Computer simulations demonstrate the effectiveness of the receiver in a system following the digital terrestrial television broadcasting (DTTB) standard. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile communications / OFDM / scattered pilot / inter-symbol interference / inter-carrier interference / turbo equalization |
| Paper # | CS2003-40,RCS2003-64 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2003/6/13(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 Scattered Pilot OFDM Turbo Equalization Reception for Multipath Environments with Delay Difference Greater than Guard Interval |
| Sub Title (in English) | |
| Keyword(1) | Mobile communications |
| Keyword(2) | OFDM |
| Keyword(3) | scattered pilot |
| Keyword(4) | inter-symbol interference |
| Keyword(5) | inter-carrier interference |
| Keyword(6) | turbo equalization |
| 1st Author's Name | Yuta SAGAE |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Satoshi SUYAMA |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Hiroshi SUZUKI |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| 4th Author's Name | Kazuhiko FUKAWA |
| 4th Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| Date | 2003/6/13 |
| Paper # | CS2003-40,RCS2003-64 |
| Volume (vol) | vol.103 |
| Number (no) | 128 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |