| Presentation | 2004-11-19 Effect of Frequency-domain Pre-equalization on MC-CDMA/TDD Uplink Using Multi-level Modulation Satoshi ABE, Shinsuke TAKAOKA, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the multi carrier code division multiple access (MC-CDMA) uplink (mobile-to-base), since different users' signals go through different frequency-selective fading channels, the use of frequency-domain equalization at a receiver can only partially restore the orthogonality property among different users' signals and therefore, the bit error ratio (BER) performance severely degrades due to large multi-access interference (MAI). Generalized minimum mean square error (GMMSE) frequency-domain ore-equalization transmission, which authors recently proposed, can achieve better BER performance than the MMSE frequency-domain equalization reception. However, when using higher-level data modulations, the influence of MAI becomes severer. In this paper, we evaluate by computer simulation the achievable BER performance using GMMSE frequency-domain pre-equalization transmission for MC-CDMA/TDD uplink with QPSK, 16 QAM and 64 QAM data modulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MC-CDMA / uplink / TDD / frequency-domain pre-equalization transmission / multi-level modulation |
| Paper # | RCS2004-231 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2004/11/12(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) | Effect of Frequency-domain Pre-equalization on MC-CDMA/TDD Uplink Using Multi-level Modulation |
| Sub Title (in English) | |
| Keyword(1) | MC-CDMA |
| Keyword(2) | uplink |
| Keyword(3) | TDD |
| Keyword(4) | frequency-domain pre-equalization transmission |
| Keyword(5) | multi-level modulation |
| 1st Author's Name | Satoshi ABE |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Shinsuke TAKAOKA |
| 2nd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Fumiyuki ADACHI |
| 3rd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2004-11-19 |
| Paper # | RCS2004-231 |
| Volume (vol) | vol.104 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |