| Presentation | 2004-08-27 A Study on IQ separated spreading for OFCDM Masaru FUKUOKA, Isamu YOSHII, Kenichi MIYOSHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes an IQ-separated OFCDM spreading method , which allocates chips in time domain and frequency domain separately after dividing the spread symbols into I-channels and Q-channels. The proposed method achieves frequency diversity gain while reducing the performance degradation due to the loss of orthogonality between the spreading codes for frequency selective channels. Moreover, this paper shows an adaptive allocation method depending on the multipath environment and the modulation scheme for the time and frequency spreading. Computer simulations show that the presented method outperforms conventional 2D spreading with prioritized time spreading for OFCDM. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFCDM / IQ separated spreading / Diversity / Prioritized time domain spreading |
| Paper # | RCS2004-141 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2004/8/20(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) | A Study on IQ separated spreading for OFCDM |
| Sub Title (in English) | |
| Keyword(1) | OFCDM |
| Keyword(2) | IQ separated spreading |
| Keyword(3) | Diversity |
| Keyword(4) | Prioritized time domain spreading |
| 1st Author's Name | Masaru FUKUOKA |
| 1st Author's Affiliation | Panasonic Mobile Communications Kanazawa R&D Lab. Co., Ltd.() |
| 2nd Author's Name | Isamu YOSHII |
| 2nd Author's Affiliation | Panasonic Multimedia Communication European Laboratory, Panasonic European Laboratories GmbH |
| 3rd Author's Name | Kenichi MIYOSHI |
| 3rd Author's Affiliation | Next-Generation Mobile Communications Development Center, Matsushita Electric Industrial Co., Ltd. |
| Date | 2004-08-27 |
| Paper # | RCS2004-141 |
| Volume (vol) | vol.104 |
| Number (no) | 258 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |