| Presentation | 2012-03-07 Single-Carrier MIMO Multiplexing Using 2-step QRM-ML Block Signal Detection Michihiko TAKASU, Katsuhiro TEMMA, Tetsuya YAMAMOTO, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Maximum likelihood block signal detection using QR-decomposition and M-algorithm (QRM-MLBD) can significantly improve the transmission performance of single-carrier multiple-input multiple-output (SC-MIMO) multiplexing compared to space filtering based on the minimum mean square error criterion (MMSED) while reducing the computational complexity compared to MLD. However, QRM-MLBD still requires high complexity in M-algorithm. Recently, the authors proposed 2-step QRM-MLBD for a single-input single-output (SISO) transmission. 2-step QRM-MLBD can remove unreliable symbol candidates from the symbol tree by computing the posteriori probabilities after MMSE based frequency domain equalization (MMSE-FDE). In this paper, for achieving further complexity reduction, we propose an adaptive detection ordering into 2-step QRM-MLBD for SC-MIMO multiplexing. The adaptive detection ordering is based on the number of symbol candidates at each stage and transmit antenna order. We show by computer simulation that 2-step QRM-MLBD using proposed ordering can achieve almost the same throughput performance as QRM-MLBD while reducing computational complexity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Single-carrier / MIMO / MLD / MMSED / QR-decomposition / M-algorithm |
| Paper # | RCS2011-317 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/2/29(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) | Single-Carrier MIMO Multiplexing Using 2-step QRM-ML Block Signal Detection |
| Sub Title (in English) | |
| Keyword(1) | Single-carrier |
| Keyword(2) | MIMO |
| Keyword(3) | MLD |
| Keyword(4) | MMSED |
| Keyword(5) | QR-decomposition |
| Keyword(6) | M-algorithm |
| 1st Author's Name | Michihiko TAKASU |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Katsuhiro TEMMA |
| 2nd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Tetsuya YAMAMOTO |
| 3rd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 4th Author's Name | Fumiyuki ADACHI |
| 4th Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2012-03-07 |
| Paper # | RCS2011-317 |
| Volume (vol) | vol.111 |
| Number (no) | 451 |
| Page | pp.pp.- |
| #Pages | 6 |
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