| Presentation | 2013-05-17 Performance of Decision-Feedback Channel Estimation Using Two-Dimensional MMSE Algorithm for TDM Based Control Signals in OFDMA Downlink Shunsuke Okaniwa, Nobuhiko Miki, Teruo Kawamura, Mamoru Sawahashi, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have proposed decision-feedback channel estimation (DFCE) methods using soft-symbol estimation of control signals for TDM based control channel in the orthogonal frequency division multiple access (OFDMA) downlink. In the proposed DFCE method, channel estimation accuracy is improved by using soft-symbol estimations of the control signals based on the extrinsic log-likelihood ratio (LLR) at the soft output Viterbi algorithm (SOVA) decoder output for convolutional coding in addition to the reference signals (RSs). This paper presents the average block error rate (BLER) performance of the control signals using the DFCE with 2-dimensional minimum mean-square error (MMSE) channel estimation filter in time and frequency domains for OFDMA downlink. By computer simulation evaluations, we show the DFCE with MMSE channel estimation filter in time domain improves the tracking ability against fast channel variation due to high maximum Doppler frequency. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | mobile communications / control signals / OFDMA / decision-feedback channel estimation / MMSE channel estimation |
| Paper # | RCS2013-33 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2013/5/9(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) | Performance of Decision-Feedback Channel Estimation Using Two-Dimensional MMSE Algorithm for TDM Based Control Signals in OFDMA Downlink |
| Sub Title (in English) | |
| Keyword(1) | mobile communications |
| Keyword(2) | control signals |
| Keyword(3) | OFDMA |
| Keyword(4) | decision-feedback channel estimation |
| Keyword(5) | MMSE channel estimation |
| 1st Author's Name | Shunsuke Okaniwa |
| 1st Author's Affiliation | Department of Information and Communication Engineering, Tokyo City University() |
| 2nd Author's Name | Nobuhiko Miki |
| 2nd Author's Affiliation | Department of Electronics and Information Engineering, Kagawa University |
| 3rd Author's Name | Teruo Kawamura |
| 3rd Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC. |
| 4th Author's Name | Mamoru Sawahashi |
| 4th Author's Affiliation | Department of Information and Communication Engineering, Tokyo City University |
| Date | 2013-05-17 |
| Paper # | RCS2013-33 |
| Volume (vol) | vol.113 |
| Number (no) | 37 |
| Page | pp.pp.- |
| #Pages | 6 |
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