| Presentation | 1999/11/26 Field Experiments on Adaptive Antenna Array Transmit Diversity in W-CDMA Forward Link Atsushi Harada, Shinya Tanaka, Taisuke Ihara, Mamoru Sawahashi, Fumiyuki Adachi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents the field experimental results on adaptive antenna array transmit diversity (AAA-TD) with 4 antenna elements in W-CDMA forward link. In our scheme, the transmit antenna weights are generated by calibrating the receiver antenna weights generated in pilot symbol-assisted coherent adaptive antenna array diversity receiver (CAAA-DR) in reverse link. In the experiment, the calibration of the phase/amplitude variations of RF transceivers was performed. Field experimental results showed that the generated beam pattern can track the movement or AOA or the mobile station (MS) moving at the average vehicular speed of 30 km/h in 2-MS environment (1-interfering MS) and that the average BER performance of the MS in forward link can be improved compared to 1-antenna transmitter ; average BER improves by two orders of magnitude at the average received signal power of -85 dBm with the average transmitted SIR = -15 dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile radio / DS-CDMA / Adaptive antenna array transmit diversity / RF transceiver calibration |
| Paper # | RCS99-157 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 1999/11/26(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) | Field Experiments on Adaptive Antenna Array Transmit Diversity in W-CDMA Forward Link |
| Sub Title (in English) | |
| Keyword(1) | Mobile radio |
| Keyword(2) | DS-CDMA |
| Keyword(3) | Adaptive antenna array transmit diversity |
| Keyword(4) | RF transceiver calibration |
| 1st Author's Name | Atsushi Harada |
| 1st Author's Affiliation | Wireless Research Laboratories, NTT Mobile Communications Network Inc.() |
| 2nd Author's Name | Shinya Tanaka |
| 2nd Author's Affiliation | Wireless Research Laboratories, NTT Mobile Communications Network Inc. |
| 3rd Author's Name | Taisuke Ihara |
| 3rd Author's Affiliation | Wireless Research Laboratories, NTT Mobile Communications Network Inc. |
| 4th Author's Name | Mamoru Sawahashi |
| 4th Author's Affiliation | Wireless Research Laboratories, NTT Mobile Communications Network Inc. |
| 5th Author's Name | Fumiyuki Adachi |
| 5th Author's Affiliation | Wireless Research Laboratories, NTT Mobile Communications Network Inc. |
| Date | 1999/11/26 |
| Paper # | RCS99-157 |
| Volume (vol) | vol.99 |
| Number (no) | 470 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |