| Presentation | 2002/11/15 Channel Estimation Scheme for OFDM Packet Transmission under Fast Rayleigh Fading Channel Takeo OHSEKI, Kyesan LEE, Hiroyasu ISHIKAWA, Hideyuki SHINONAGA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, an effective channel estimation scheme for the OFDM transmission system is presented. The proposed scheme improves the bit error rate (BER) performance under the first Rayleigh fading channel compared with the conventional channel estimation schemes which utilize pre-known data sequences in a preamble portion or pilot symbols assigned in a payload. The proposed scheme is based on an iterative channel estimation scheme that utilizes channel distortion compensated, demodulated and hard decided data as replicas at every symbol duration. Further, the proposed scheme observes the channel distortions of sub-carriers and estimates their propagation characteristics using adjacent sub-carriers in a good condition when the channel conditions of particular sub-carriers are in a bad condition. The performance of the proposed scheme is evaluated from several aspects by computer simulation, and the simulation results show that the scheme improves the bit error rate (BER) under high-mobility environments in comparison with the conventional scheme. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / channel estimation / fast Rayleigh fading |
| Paper # | RCS2002-200 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2002/11/15(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) | Channel Estimation Scheme for OFDM Packet Transmission under Fast Rayleigh Fading Channel |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | channel estimation |
| Keyword(3) | fast Rayleigh fading |
| 1st Author's Name | Takeo OHSEKI |
| 1st Author's Affiliation | KDDI R&D Laboratories() |
| 2nd Author's Name | Kyesan LEE |
| 2nd Author's Affiliation | KDDI R&D Laboratories |
| 3rd Author's Name | Hiroyasu ISHIKAWA |
| 3rd Author's Affiliation | KDDI R&D Laboratories |
| 4th Author's Name | Hideyuki SHINONAGA |
| 4th Author's Affiliation | KDDI R&D Laboratories |
| Date | 2002/11/15 |
| Paper # | RCS2002-200 |
| Volume (vol) | vol.102 |
| Number (no) | 465 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |