| Presentation | 2004-11-18 A CDM Transmission Scheme Using Cyclic Shifted-and-Extended Codes Based on Zero Cross-correlation Characteristics Kazuyuki SHIMEZAWA, Hiroshi HARADA, Hiroshi SHIRAI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have developed a code-division-multiplexing (CDM) transmission scheme for future mobile radio communication systems, which uses cyclic shifted-and-extended (CSE) codes generated from a basic sequence with superior auto-correlation characteristics. This paper uses a Quasi-Orthogonal sequence as the basic sequence. And its auto-correlation values are zero except at zero and middle shifts. When the CDM transmission is performed by the spread codes, a desired correlation value is, at a receiver, interfered by the auto-correlation value at middle shift. Therefore, a technique for eliminating the interfered correlation value is proposed, and realizes perfect correlation characteristics within the cyclical shifted chips. The new CDM transmission scheme based on the proposed scheme is evaluated by computer simulations in terms of the bit-error-rate performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Zero Cross-correlation / Quasi-Orthogonal Sequence / Rake Combining / Cyclic Shifted-and-Extended Code / Code Division Multiplexing |
| Paper # | RCS2004-211 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2004/11/11(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | A CDM Transmission Scheme Using Cyclic Shifted-and-Extended Codes Based on Zero Cross-correlation Characteristics |
| Sub Title (in English) | |
| Keyword(1) | Zero Cross-correlation |
| Keyword(2) | Quasi-Orthogonal Sequence |
| Keyword(3) | Rake Combining |
| Keyword(4) | Cyclic Shifted-and-Extended Code |
| Keyword(5) | Code Division Multiplexing |
| 1st Author's Name | Kazuyuki SHIMEZAWA |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Chuo University() |
| 2nd Author's Name | Hiroshi HARADA |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology |
| 3rd Author's Name | Hiroshi SHIRAI |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Chuo University |
| Date | 2004-11-18 |
| Paper # | RCS2004-211 |
| Volume (vol) | vol.104 |
| Number (no) | 439 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |