| Presentation | 2002/8/22 Experiments on Adaptive Antenna Array Transmit Diversity in Forward Link Using Inter-Cell Site Diversity Hidekazu Taoka, Kenichi Higuchi, Takashi Kataoka, Takahiro Asai, Mamoru Sawahashi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper investigates by laboratory experiments the effect of inter-cell site diversity for adaptive antenna array transmit diversity (AAA-TD) in the forward link The experimental results elucidate the fast convergence performance of transmitter antenna weights, which are generated based on the receiver antenna weights in the reverese link, by increasing the target E_b/I_O value of the original cell site in fast transmission power control (TPC) at the beginning of soft handover, and then the transmission power of the soft-handover base transciver stations (BTSs) is reduced by approximately 1 dB. We also clarified that when the site deversity between 2 cell sites with maximum ratio combining(MRC) was conducted, the required total average transmit E_b/N_O employing AAA-TD at the average block error rate (BLER) of 10^<-2> is reduced by approximately 1 dB compared to 1-cell site connection, assuming 2-path Rayleigh fading with the maximum Doppler frequency of f_D = 80 Hz and average pass loss difference between 2 BTSs and a user equipment of △_<12> = 0 dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | W-CDMA / Adaptive antenna array / Interference suppression / Site diversity / Soft handover |
| Paper # | RCS2002-144 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2002/8/22(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) | Experiments on Adaptive Antenna Array Transmit Diversity in Forward Link Using Inter-Cell Site Diversity |
| Sub Title (in English) | |
| Keyword(1) | W-CDMA |
| Keyword(2) | Adaptive antenna array |
| Keyword(3) | Interference suppression |
| Keyword(4) | Site diversity |
| Keyword(5) | Soft handover |
| 1st Author's Name | Hidekazu Taoka |
| 1st Author's Affiliation | Wireless Laboratories, NTT DoCoMo, Inc.() |
| 2nd Author's Name | Kenichi Higuchi |
| 2nd Author's Affiliation | Wireless Laboratories, NTT DoCoMo, Inc. |
| 3rd Author's Name | Takashi Kataoka |
| 3rd Author's Affiliation | Wireless Laboratories, NTT DoCoMo, Inc. |
| 4th Author's Name | Takahiro Asai |
| 4th Author's Affiliation | Wireless Laboratories, NTT DoCoMo, Inc. |
| 5th Author's Name | Mamoru Sawahashi |
| 5th Author's Affiliation | Wireless Laboratories, NTT DoCoMo, Inc. |
| Date | 2002/8/22 |
| Paper # | RCS2002-144 |
| Volume (vol) | vol.102 |
| Number (no) | 281 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |