| Presentation | 2003/10/10 Application of space-time coded transmission diversity to DS-CDMA using frequency-domain equalization Kazuaki TAKEDA, Takeshi ITAGAKI, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Rake combining is used in direct sequence code division multiple access (DS-CDMA). However, as the number of propagation paths increases, the bit error rate (BER) performance degrades due to increasing inter-path interference (IPI). Frequency-domain equalization used in multi-carrier CDMA (MC-CDMA) can be applied to achieve better bit error rate (BER) performance than rake combining in a severe frequency-selective fading channel. However, even with frequency-domain equalization, BER floors are produced in the uplink of a DS-CDMA system, due to large multi-user interference (MUI). To improve the BER performance of DS-CDMA uplinks, an application of multi-antenna transmit/receive diversity is promising. In this paper, we apply space-time transmit diversity (STTD) and antenna diversity reception in addition to frequency-domain equalization. The BER performances of downlink and uplink of a DS-CDMA system are evaluated by computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Frequency-domain equalization / DS-CDMA / space-time transmit diversity |
| Paper # | RCS2003-150 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2003/10/10(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Application of space-time coded transmission diversity to DS-CDMA using frequency-domain equalization |
| Sub Title (in English) | |
| Keyword(1) | Frequency-domain equalization |
| Keyword(2) | DS-CDMA |
| Keyword(3) | space-time transmit diversity |
| 1st Author's Name | Kazuaki TAKEDA |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Takeshi ITAGAKI |
| 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 | 2003/10/10 |
| Paper # | RCS2003-150 |
| Volume (vol) | vol.103 |
| Number (no) | 363 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |