| Presentation | 2002/11/15 The Optimum Weights of Multi-Antenna Transmit and Receive Diversity in a Frequency Selective Fading Environment for DS-CDMA Akihito KATOH, Eisuke KUDOH, Fumiyuki ADACHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we study DS-CDMA delay transmit diversity that transmits the time-delayed versions of the same signal from weighted multiple antennas in a frequency selective fading environment. At a receiver, multiple receive antennas are used and the received delayed signals are coherently combined by Rake receiver. The set of optimum antenna weights for maximizing the received signal-to-noise power ratio (SNR) is theoretically derived to show that the optimum solution is to transmit only from the best antenna that has the maximum equivalent channel gain after Rake combining. The improvement of the BER performance from conventional delay transmit diversity is theoretically analyzed and confirmed by computer simulations. The combined effect of transmit diversity and transmit power control (TPC) is also evaluated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | transmit diversity / transmit power control / fading / DS-CDMA / Rake combining |
| Paper # | RCS2002-206 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2002/11/15(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) | The Optimum Weights of Multi-Antenna Transmit and Receive Diversity in a Frequency Selective Fading Environment for DS-CDMA |
| Sub Title (in English) | |
| Keyword(1) | transmit diversity |
| Keyword(2) | transmit power control |
| Keyword(3) | fading |
| Keyword(4) | DS-CDMA |
| Keyword(5) | Rake combining |
| 1st Author's Name | Akihito KATOH |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Eisuke KUDOH |
| 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 | 2002/11/15 |
| Paper # | RCS2002-206 |
| Volume (vol) | vol.102 |
| Number (no) | 465 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |