| Presentation | 2006-01-26 Frequency-domain Differential Detection and Equalization for 2-dimensional spread/chip-interleaved DS-CDMA Le LIU, Fumiyuki ADACHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The multiple-access interference (MAI) limits the performance of the DS-CDMA uplink transmission. 2D OVSF spread/chip-interleaved DS-CDMA is an MAI-free system, and hence single-user coherent frequency-domain equalization (FDE) can be used instead of complicated multiuser detection (MUD). However, coherent FDE needs channel estimation. Pilot-assisted channel estimation is not reliable when Doppler fading is fast. In this paper, we consider frequency-domain differential detection and equalization (FDDDE) in a multiuser/multipath environment, which doesn't require channel estimation and is robust against fast fading. The transmission performance of 2D spread/chip-interleaved DS-CDMA using FDDDE in a time- and frequency-selective fading multiuser environment is evaluated by computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Differential detection / DS-CDMA uplink transmission / chip interleaving / 2-dimensional spreading |
| Paper # | RCS2005-149 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Radio Communication Systems (RCS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Frequency-domain Differential Detection and Equalization for 2-dimensional spread/chip-interleaved DS-CDMA |
| Sub Title (in English) | |
| Keyword(1) | Differential detection |
| Keyword(2) | DS-CDMA uplink transmission |
| Keyword(3) | chip interleaving |
| Keyword(4) | 2-dimensional spreading |
| 1st Author's Name | Le LIU |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Fumiyuki ADACHI |
| 2nd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2006-01-26 |
| Paper # | RCS2005-149 |
| Volume (vol) | vol.105 |
| Number (no) | 559 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |