| Presentation | 2004-12-20 Combining Characteristics of DS/SS system Using Feedback Controlled Spreading Sequence for Time-dispersive Channels Teruhiko MIYATAKE, Masanori HAMAMURA, Shin'ichi TACHIKAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we apply a novel DS/SS system using feedback-controlled spreading sequences (FCSS-DS system) to time-dispersive channels. In the COF (code-orthogonalizing filter) used in the receiver of the FCSS-DS system, spreading sequences are generated to suppress interference due to channel delay spread and to obtain a path-combining gain through the channel. The receiver returns feedback on spreading sequence to the transmitter, and the transmitter uses the feedback to update a spreading sequence. First, bit-error rate (BER) performance of the FCSS-DS system is evaluated in comparison with the conventional DS/SS systems with/without the RAKE combining over 2-path and power-line channels. Influence of quantizing error is also evaluated with respect to BER, and finally, multiple access performance is shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spread spectrum / direct sequence / multipath / COF / RAKE |
| Paper # | WBS2004-45 |
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| Conference Information | |
| Committee | WBS |
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| Conference Date | 2004/12/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Wideband System(WBS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Combining Characteristics of DS/SS system Using Feedback Controlled Spreading Sequence for Time-dispersive Channels |
| Sub Title (in English) | |
| Keyword(1) | spread spectrum |
| Keyword(2) | direct sequence |
| Keyword(3) | multipath |
| Keyword(4) | COF |
| Keyword(5) | RAKE |
| 1st Author's Name | Teruhiko MIYATAKE |
| 1st Author's Affiliation | Graduate School of Engineering, Kochi University of Technology() |
| 2nd Author's Name | Masanori HAMAMURA |
| 2nd Author's Affiliation | Graduate School of Engineering, Kochi University of Technology |
| 3rd Author's Name | Shin'ichi TACHIKAWA |
| 3rd Author's Affiliation | Department of Electrical Engineering, Nagaoka University of Technology |
| Date | 2004-12-20 |
| Paper # | WBS2004-45 |
| Volume (vol) | vol.104 |
| Number (no) | 535 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |