| Presentation | 2006-07-19 MAP Signal Detection Employing Adaptive Channel Estimation Based on BCJR Algorithm Songyan WANG, Kazuhiko FUKAWA, Hiroshi SUZUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report theoretically derives joint processing of the maximum a posteriori (MAP) signal detection with channel estimation by the Kalman filter or the LMS algorithm, for a single-carrier mobile communication on frequency-selective fast fading channels. The proposed receiver consists of (i) a MAP equalizer that jointly performs channel estimation and equalization, and (ii) a MAP decoder for a channel coding. They provide each other with a priori Log-Likelihood Ratio (LLR) and a posteriori LLR of coded bits by iterative processing in order to enhance reliability of the signal detection. To track the fast fading fluctuation, the MAP equalizer estimates the channel impulse responses for every state by the Kalman filter or the LMS algorithm, and then calculates LLR of the coded bits by the Max-Log-MAP algorithm upon the basis of the BCJR algorithms. Computer simulations under a fast multipath fading condition demonstrate that the proposed scheme is much superior in BER performance to conventional ones employing the soft or hard decision feedback channel estimation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile communication / fast fading / MAP estimation / BCJR algorithm / Kalman filter / LMS algorithm |
| Paper # | RCS2006-70 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/7/12(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) | MAP Signal Detection Employing Adaptive Channel Estimation Based on BCJR Algorithm |
| Sub Title (in English) | |
| Keyword(1) | Mobile communication |
| Keyword(2) | fast fading |
| Keyword(3) | MAP estimation |
| Keyword(4) | BCJR algorithm |
| Keyword(5) | Kalman filter |
| Keyword(6) | LMS algorithm |
| 1st Author's Name | Songyan WANG |
| 1st Author's Affiliation | Tokyo Institute of Technology() |
| 2nd Author's Name | Kazuhiko FUKAWA |
| 2nd Author's Affiliation | Tokyo Institute of Technology |
| 3rd Author's Name | Hiroshi SUZUKI |
| 3rd Author's Affiliation | Tokyo Institute of Technology |
| Date | 2006-07-19 |
| Paper # | RCS2006-70 |
| Volume (vol) | vol.106 |
| Number (no) | 168 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |