| Presentation | 2008-08-27 A Study on Channel Tracking Scheme for MIMO-OFDM Systems under Fast Fading Environments Masaki TAKANASHI, Keiichiro HAYAKAWA, Katsushi SANDA, Tsutayuki SHIBATA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Channel tracking scheme is essential to achieve reliable wireless communications under fast fading environments caused by surrounding vehicles. In a coherent detection, decision feedback is a well-known channel tracking scheme. This is the scheme in which replica signals are generated and channel estimation is done by the replica signals by treating as training symbols. However, because the channel estimation performance depends on the SNR at the symbol time, decision feedback error occurs by the lower SNR caused by the fast fading. The feedback error degrades the transmission performance significantly. In OFDM systems, time domain 0-padding scheme is a well-known channel estimation scheme. Although better channel tracking performance is expected by applying the 0-padding scheme, the tracking performance is degraded when employing guard bands in the OFDM transmission. In this paper, we propose an improved time domain 0-padding scheme for the OFDM systems employing guard bands, and show the better performance through computer simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | STBC / Decision feedback / Channel Tracking / Time domain 0-padding scheme |
| Paper # | RCS2008-59 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2008/8/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| 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 Channel Tracking Scheme for MIMO-OFDM Systems under Fast Fading Environments |
| Sub Title (in English) | |
| Keyword(1) | STBC |
| Keyword(2) | Decision feedback |
| Keyword(3) | Channel Tracking |
| Keyword(4) | Time domain 0-padding scheme |
| 1st Author's Name | Masaki TAKANASHI |
| 1st Author's Affiliation | Toyota Central R & D Labs., Inc.() |
| 2nd Author's Name | Keiichiro HAYAKAWA |
| 2nd Author's Affiliation | Toyota Central R & D Labs., Inc. |
| 3rd Author's Name | Katsushi SANDA |
| 3rd Author's Affiliation | Toyota Central R & D Labs., Inc. |
| 4th Author's Name | Tsutayuki SHIBATA |
| 4th Author's Affiliation | Toyota Central R & D Labs., Inc. |
| Date | 2008-08-27 |
| Paper # | RCS2008-59 |
| Volume (vol) | vol.108 |
| Number (no) | 188 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |