| Presentation | 1995/12/14 Transmission and Reception Diversity at a Base Station for DS-CDMA Systems Hideaki Okamoto, Keisuke Suwa, Ryoji Kawasaki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Direct Sequence -Code Division Multiple Access (DS-CDMA) systems are one of the most promising access systems for the next generation of systems. The path diversity inherent in DS-CDMA can separate, by spreading code length Tc, the multipath signals due to reflection and diffraction by building and terrain and can combine each signal in propotion to the correlator output signal level. In a microcellular environment where the delay spread is less than a several hundred nanoseconds, it is difficult to separate the individual delayed signals, so the path diversity effect are very small. This problem can be solved with hybrid diversity which combines space and path diversity. A transmission and reception diversity at a base station which consists of space and path diversity using multiple selection combining for reception, and using delay circuit among antennas for transmission is discussed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DS-CDMA systems / space diversity / path diversity / bit error rate / base station / microcell |
| Paper # | DSP95-126,SST95-100 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 1995/12/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Transmission and Reception Diversity at a Base Station for DS-CDMA Systems |
| Sub Title (in English) | |
| Keyword(1) | DS-CDMA systems |
| Keyword(2) | space diversity |
| Keyword(3) | path diversity |
| Keyword(4) | bit error rate |
| Keyword(5) | base station |
| Keyword(6) | microcell |
| 1st Author's Name | Hideaki Okamoto |
| 1st Author's Affiliation | NTT Wireless Systems Laboratories() |
| 2nd Author's Name | Keisuke Suwa |
| 2nd Author's Affiliation | NTT Wireless Systems Laboratories |
| 3rd Author's Name | Ryoji Kawasaki |
| 3rd Author's Affiliation | NTT Wireless Systems Laboratories |
| Date | 1995/12/14 |
| Paper # | DSP95-126,SST95-100 |
| Volume (vol) | vol.95 |
| Number (no) | 416 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |