| Presentation | 2005/2/24 Accurate Channel Estimation Method using Decision Feedback Data Symbols after Soft-decision Turbo Decoding in QRM-MLD for OFDM MIMO Multiplexing Koichi ADACHI, Riaz ESMAILZADEH, Masao NAKAGAWA, Hiroyuki KAWAI, Kenichi HIGUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes accurate channel estimation method using decision feedback data symbols after soft-decision Turbo decoding in maximum likelihood detection employing QR decomposition and M-algorithm (QRM-MLD) for OFDM MIMO multiplexing. Computer simulation results elucidate that the required average received signal energy per bit-to-noise power spectrum density ratio (E_b/N_0) using proposed method at the average packet error rate of 10^<-2> is reduced by approximately 1.5 dB compared to that with conventional channel estimation using only orthogonal pilot symbols in 4-by-4 MIMO multiplexing employing QPSK modulation and Turbo coding with the channel coding rate of 3/4 (12-path Rayleigh fading channel, root mean squared delay spread of 0.26μsec, maximum Doppler frequency of 10 Hz). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / QRM-MLD / Turbo Coding / Channel Estimation |
| Paper # | WBS2004-114,A・P2004-295,RCS2004-382,MoMuC2004-165,MW2004-292 |
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| Conference Information | |
| Committee | MoMuC |
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| Conference Date | 2005/2/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Mobile Multimedia Communications(MoMuC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Accurate Channel Estimation Method using Decision Feedback Data Symbols after Soft-decision Turbo Decoding in QRM-MLD for OFDM MIMO Multiplexing |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | QRM-MLD |
| Keyword(3) | Turbo Coding |
| Keyword(4) | Channel Estimation |
| 1st Author's Name | Koichi ADACHI |
| 1st Author's Affiliation | Department of Information and Computer Science, Keio University() |
| 2nd Author's Name | Riaz ESMAILZADEH |
| 2nd Author's Affiliation | Department of Information and Computer Science, Keio University |
| 3rd Author's Name | Masao NAKAGAWA |
| 3rd Author's Affiliation | Department of Information and Computer Science, Keio University |
| 4th Author's Name | Hiroyuki KAWAI |
| 4th Author's Affiliation | IP Radio Network Development Department, NTT DoCoMo, Inc. |
| 5th Author's Name | Kenichi HIGUCHI |
| 5th Author's Affiliation | IP Radio Network Development Department, NTT DoCoMo, Inc. |
| Date | 2005/2/24 |
| Paper # | WBS2004-114,A・P2004-295,RCS2004-382,MoMuC2004-165,MW2004-292 |
| Volume (vol) | vol.104 |
| Number (no) | 682 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |