| Presentation | 2004/4/16 Maximum Likelihood Detection Based on Replica Candidate Selection with QR Decomposition Employing Multipath Interference Canceller with Two-Dimensional MMSE for Broadband DS-CDMA Junichiro Kawamoto, Noriyuki Maeda, Kenichi Higuchi, Mamoru Sawahashi, Shousei Yoshida, Masayuki Kimata, Akihisa Ushirokawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposed Maximum Likelihood Detection (MLD) using symbol replica candidate selection with QR decomposition and M-algorithm (QRM-MLD hereafter) combined with Multipath Interference Canceller (MPIC) with two-dimensional Minimum Mean Squared Error (MMSE) for broadband DS-CDMA. In the proposed scheme, the mulitpath interference is suppressed by two-dimensional MMSE using channel matrix generated by pilot channel and then, signal separation is executed by QRM-MLD after multipath interference (MPI) removal. Simulation results elucidated that by the proposed scheme, the throughput of250 and 300 Mbps was achieved at the average received signal energy per bit-to-noise power spectrum density ratio (E_b/N_0) of approximately 10 and 13 dB using 8PSK modulation associated with Turbo coding with the coding rate of 3/4 and 8/9 for 15-code multiplexing with the spreading factor of 16 in 4-by-4 MIMO multiplexing assuming 40-MHz bandwidth. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | broadband DS-CDMA / MIMO / maximum likelihood detection / two-dimensional minimum mean squared error / multipath interference canceller |
| Paper # | RCS2004-27,CQ2004-27 |
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| Conference Information | |
| Committee | CQ |
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| Conference Date | 2004/4/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Communication Quality (CQ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Maximum Likelihood Detection Based on Replica Candidate Selection with QR Decomposition Employing Multipath Interference Canceller with Two-Dimensional MMSE for Broadband DS-CDMA |
| Sub Title (in English) | |
| Keyword(1) | broadband DS-CDMA |
| Keyword(2) | MIMO |
| Keyword(3) | maximum likelihood detection |
| Keyword(4) | two-dimensional minimum mean squared error |
| Keyword(5) | multipath interference canceller |
| 1st Author's Name | Junichiro Kawamoto |
| 1st Author's Affiliation | NTT DoCoMo, Inc.() |
| 2nd Author's Name | Noriyuki Maeda |
| 2nd Author's Affiliation | NTT DoCoMo, Inc. |
| 3rd Author's Name | Kenichi Higuchi |
| 3rd Author's Affiliation | NTT DoCoMo, Inc. |
| 4th Author's Name | Mamoru Sawahashi |
| 4th Author's Affiliation | NTT DoCoMo, Inc. |
| 5th Author's Name | Shousei Yoshida |
| 5th Author's Affiliation | NEC Corporation |
| 6th Author's Name | Masayuki Kimata |
| 6th Author's Affiliation | NEC Corporation |
| 7th Author's Name | Akihisa Ushirokawa |
| 7th Author's Affiliation | NEC Corporation |
| Date | 2004/4/16 |
| Paper # | RCS2004-27,CQ2004-27 |
| Volume (vol) | vol.104 |
| Number (no) | 22 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |