| Presentation | 2001/10/13 Performance of Multipath Interfence Canceller using Soft-Decision Replica Combined with Hybrid ARQ in High Speed Downlink Packet Access Nobuhiko Miki, Sadayuki Abeta, Hiroyuki Atarashi, Mamoru Sawahasi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a multipath interference canceller(MPIC) employing soft-decision replica generation that is suitable for hybrid ARQ(HARQ) with packet combining to achieve a peak throughput of more than 10 Mbps in high speed downlink packet access(HSDPA). In the proposed scheme, a multipath interference(MPI) replica is generated based on the log-likelihood ratio of the Rake combined data symbols to employ the soft-decision data symbols at the last stage of the originally-transmitted packets. Simulation results elucidate that by using the soft-decision replica generation, a four-stage MPIC improves the peak throughput by approximately 300 kbps and 1 Mbps with 64QAM data modulation in an average equal level 2- and 3- path Rayleigh fading channel compared with the MPIC using hard-decision replica generation, respectively. We also indicate by effectively combining the originally transmitted packet with the identical retransmitted one in soft-decision MPI replica generation, the maximum peak throughput using the proposed MPIC achieves approximately 11.8 and 10.4 Mbps with 64QAM data modelation in a 2- and 3-path Rayleigh fading channel, respectively, using a 5-MHz bandwidth. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | High speed downlink packet access / Hybrid ARQ / Soft-decision replica / Multipath interference canceller |
| Paper # | A・P2001-126,RCS2001-165 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2001/10/13(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 Multipath Interfence Canceller using Soft-Decision Replica Combined with Hybrid ARQ in High Speed Downlink Packet Access |
| Sub Title (in English) | |
| Keyword(1) | High speed downlink packet access |
| Keyword(2) | Hybrid ARQ |
| Keyword(3) | Soft-decision replica |
| Keyword(4) | Multipath interference canceller |
| 1st Author's Name | Nobuhiko Miki |
| 1st Author's Affiliation | Wireless Laboratories, NTTDoCoMo, Inc.() |
| 2nd Author's Name | Sadayuki Abeta |
| 2nd Author's Affiliation | Wireless Laboratories, NTTDoCoMo, Inc. |
| 3rd Author's Name | Hiroyuki Atarashi |
| 3rd Author's Affiliation | Wireless Laboratories, NTTDoCoMo, Inc. |
| 4th Author's Name | Mamoru Sawahasi |
| 4th Author's Affiliation | Wireless Laboratories, NTTDoCoMo, Inc. |
| Date | 2001/10/13 |
| Paper # | A・P2001-126,RCS2001-165 |
| Volume (vol) | vol.101 |
| Number (no) | 371 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |