| Presentation | 2004/7/9 Investigations on BLER and Throughput Performances of Adaptive Selection Algorithm of Surviving Symbol Replica Candidates in QRM-MLD for MIMO Multiplexing Using OFCDM Wireless Access Hiroyuki Kawai, Kenichi Higuchi, Noriyuki Maeda, Mamoru Sawahashi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper investigated block error rate (BLER) and throughput performances of maximum likelihood detection (MLD) employing QR Decomposition and M-algorithm (QRM-MLD hereafter) applying the proposed adaptive selection algorithm of surviving symbol replicacandidates exploiting reliability of each symbol replica for MIMO multiplexing in OFCDM (Orthogonal Frequency and Code Division Multiplexing) wireless access. Simulation results elucidated that the loss in the required average received E_b/N_0 of the adaptive selection of surviving symbol-replica candidates in QRM-MLD from that of full MLD was suppressed within 0.5 dB irrespective of number of antenna branches, data modulation and channel coding rate assuming Turbo coding. Further, the throughput of 1 Gbps was achieved at the average received E_b/N_0 of approximately 9.5 dB for 16QAM modulation and R=8/9 in OFCDM access with 8-code multiplexing for spreading factor of 8 assuming 100-MHz bandwidth, and the computational complexity of the QRM-MLD in the case was suppressed to approximately 1/1900, 1/16, and 1.3 times that of full MLD, original QRM-MLD, and MMSE, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFCDM / Multiple-Input Multiple-Output / QRM-MLD / computational complexity reduction / quadrant detection |
| Paper # | NS2004-72,RCS2004-108 |
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| Conference Information | |
| Committee | NS |
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| Conference Date | 2004/7/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Network Systems(NS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Investigations on BLER and Throughput Performances of Adaptive Selection Algorithm of Surviving Symbol Replica Candidates in QRM-MLD for MIMO Multiplexing Using OFCDM Wireless Access |
| Sub Title (in English) | |
| Keyword(1) | OFCDM |
| Keyword(2) | Multiple-Input Multiple-Output |
| Keyword(3) | QRM-MLD |
| Keyword(4) | computational complexity reduction |
| Keyword(5) | quadrant detection |
| 1st Author's Name | Hiroyuki Kawai |
| 1st Author's Affiliation | IP Radio Network Development Department, NTT DoCoMo, Inc.() |
| 2nd Author's Name | Kenichi Higuchi |
| 2nd Author's Affiliation | IP Radio Network Development Department, NTT DoCoMo, Inc. |
| 3rd Author's Name | Noriyuki Maeda |
| 3rd Author's Affiliation | IP Radio Network Development Department, NTT DoCoMo, Inc. |
| 4th Author's Name | Mamoru Sawahashi |
| 4th Author's Affiliation | IP Radio Network Development Department, NTT DoCoMo, Inc. |
| Date | 2004/7/9 |
| Paper # | NS2004-72,RCS2004-108 |
| Volume (vol) | vol.104 |
| Number (no) | 184 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |