| Presentation | 1999/7/23 CDMA Path-search Sheme Using Combined Delay Profile of Diversity Antennas Akio AOYAMA, Shousei YOSHIDA, Akihisa USHIROKAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In CDMA systems, fast and accurate path timing detection (path-search) is required to obtain the path diversity (RAKE) effect. This paper proposes a CDMA path-search scheme with short detection time using combined delay profile of diversity antennas. In the proposed scheme, common path timings detected from the combined delay profile are used in each antenna branch demodulator. Since fading level variation is suppressed in the combined delay profile, path-search time can be reduced. Computer simulation demonstrates that the proposed scheme shows path-search time achieves the path-search time of less than 15 ms, which is 1/2～1/4 less than that of the conventional scheme detecting independent path timing from each delay profile of diversity antennas. The proposed scheme is particularly effective in a low Doppler frequency range of less than 40Hz. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | CDMA / path-search / delay profile / diversity |
| Paper # | RCS99-67 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 1999/7/23(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) | CDMA Path-search Sheme Using Combined Delay Profile of Diversity Antennas |
| Sub Title (in English) | |
| Keyword(1) | CDMA |
| Keyword(2) | path-search |
| Keyword(3) | delay profile |
| Keyword(4) | diversity |
| 1st Author's Name | Akio AOYAMA |
| 1st Author's Affiliation | C&C Media Research Labs., NEC Corporation() |
| 2nd Author's Name | Shousei YOSHIDA |
| 2nd Author's Affiliation | C&C Media Research Labs., NEC Corporation |
| 3rd Author's Name | Akihisa USHIROKAWA |
| 3rd Author's Affiliation | C&C Media Research Labs., NEC Corporation |
| Date | 1999/7/23 |
| Paper # | RCS99-67 |
| Volume (vol) | vol.99 |
| Number (no) | 220 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |