| Presentation | 2004/1/8 Space-Time Trellis Coded OFDM System with Added Pilot Semi-Blind Iterative Channel Estimation Naoto OHKUBO, Tomoaki OHTSUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, Multiple-Input Multiple Output (MIMO) systems with some transmit and receive antennas have attracted much attention in radio environments. Various channel estimation methods have been proposed. In these methods, channel estimation is performed in the preamble of a frame. In data symbols, Decision-Directed Channel estimation (DDCE) are used for tracking the channel variations. However, DDCE can not track the channel variations in fast fading channels, and thus performance degradation is occurred. In this study, to prevent the performance degradation in fast fading channels, we consider the application of the added pilot semi-blind (APSB) channel estimation to the MIMO-OFDM system, where the APSB channel estimation have been proposed for the scattered pilot assisted OFDM with single antenna. We propose the system that applies the APSB channel estimation to all the OFDM symbols in a frame. We also propose the simplified system that applies the APSB channel estimation to the last OFDM symbol of a frame. We show that the proposed systems can improve the word error rate (WER) arid mean square error (MSE) performances than the conventional system that uses only the DDCE. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / OFDM / Decision-Directed Channel Estimation / Added Pilot Semi-Blind Channel Estimation |
| Paper # | DSP2003-152,SAT2003-149,RCS2003-247 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2004/1/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Space-Time Trellis Coded OFDM System with Added Pilot Semi-Blind Iterative Channel Estimation |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | OFDM |
| Keyword(3) | Decision-Directed Channel Estimation |
| Keyword(4) | Added Pilot Semi-Blind Channel Estimation |
| 1st Author's Name | Naoto OHKUBO |
| 1st Author's Affiliation | Graduate School of Science and Technology, Tokyo University of Science() |
| 2nd Author's Name | Tomoaki OHTSUKI |
| 2nd Author's Affiliation | Faculty of Science and Technology, Tokyo University of Science |
| Date | 2004/1/8 |
| Paper # | DSP2003-152,SAT2003-149,RCS2003-247 |
| Volume (vol) | vol.103 |
| Number (no) | 549 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |