| Presentation | 1994/9/16 An estimation scheme of propagation path characteristics for an adaptive modulation system Takashi Suzuki, Seiichi Sampei, Norihiko Morinaga, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes an in-line monitoring scheme of the propagation path characteristics for an adaptive modidation, TDMA/ TDD system.In this scheme,instantaneous delay proffie of the received signal is measured using a modified PN sequence embedded in the preamble of each burst,and instantaneous C/N_0 and delay spread for the next transmission slot are estimated using the reciprocity of the propagation path characteristics in the TDMA/ TDD systems to decide the most appropreate modulation parameters for the transmitted signal using.Computer simulation confirms that the proposed method can estimate instantaneous C/N_0 and delay spread with errors of less than 1.5 dB and 0.02 T_s,and they degrades the BER performance of an adaptive modulation scheme by only 1dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | adaptive modulation system / TDMA/DD / delay spread / C/_0 / delay profile / modified PN sequence |
| Paper # | RCS94-65 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 1994/9/16(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) | An estimation scheme of propagation path characteristics for an adaptive modulation system |
| Sub Title (in English) | |
| Keyword(1) | adaptive modulation system |
| Keyword(2) | TDMA/DD |
| Keyword(3) | delay spread |
| Keyword(4) | C/_0 |
| Keyword(5) | delay profile |
| Keyword(6) | modified PN sequence |
| 1st Author's Name | Takashi Suzuki |
| 1st Author's Affiliation | Faculty of Engineering,Osaka University() |
| 2nd Author's Name | Seiichi Sampei |
| 2nd Author's Affiliation | Faculty of Engineering,Osaka University |
| 3rd Author's Name | Norihiko Morinaga |
| 3rd Author's Affiliation | Faculty of Engineering,Osaka University |
| Date | 1994/9/16 |
| Paper # | RCS94-65 |
| Volume (vol) | vol.94 |
| Number (no) | 238 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |