| Presentation | 2003/4/11 MC-CDMA System Using Unitary Space-Time Modulation on Down-link Broadband Mobile Radio Communication Tsutomu OHNO, Tomokazu KAMBAYASHI, Takaaki HORIUCHI, Chang-Jun AHN, Iwao SASASE, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to mitigate the effect of fading, the MC-CDMA system using Space-Time Block Code (STBC) has been studied. When MC-CDMA system has small number of users, the BER performance of the STBC/MC-CDMA system can be improved compared with MC-CDMA system with one transmit antenna. However, when the MC-CDMA system has large number of users, the BER performance of the STBC/MC-CDMA system is degraded compared with MC-CDMA system with one transmit antenna. This is because the STBC/MC-CDMA system enhances the effect of Multi-User Interference (MUI), and diversity gain obtained by employing STBC is reduced by the effect of MUI. To solve this problem, we propose the Unitary Space-Time Modulation (USTM)/MC-CDMA system. In the proposed system, the effect of MUI can be reduced in comparison with STBC/MC-CDMA by employing USTM. Consequently, we show that the proposed system can improve the BER performance compared with the STBC/MC-CDMA system when the MC-CDMA system has large number of users. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | USTM / STBC / MC-CDMA |
| Paper # | RCS2003-20,CQ2003-20 |
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| Conference Information | |
| Committee | CQ |
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| Conference Date | 2003/4/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Communication Quality (CQ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | MC-CDMA System Using Unitary Space-Time Modulation on Down-link Broadband Mobile Radio Communication |
| Sub Title (in English) | |
| Keyword(1) | USTM |
| Keyword(2) | STBC |
| Keyword(3) | MC-CDMA |
| 1st Author's Name | Tsutomu OHNO |
| 1st Author's Affiliation | Dept. of Information and Computer Science, Keio University() |
| 2nd Author's Name | Tomokazu KAMBAYASHI |
| 2nd Author's Affiliation | Dept. of Information and Computer Science, Keio University |
| 3rd Author's Name | Takaaki HORIUCHI |
| 3rd Author's Affiliation | Dept. of Information and Computer Science, Keio University |
| 4th Author's Name | Chang-Jun AHN |
| 4th Author's Affiliation | Dept. of Information and Computer Science, Keio University |
| 5th Author's Name | Iwao SASASE |
| 5th Author's Affiliation | Dept. of Information and Computer Science, Keio University |
| Date | 2003/4/11 |
| Paper # | RCS2003-20,CQ2003-20 |
| Volume (vol) | vol.103 |
| Number (no) | 14 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |