| Presentation | 2014-12-19 Impact of Signal Intensity Differences on the BER Performance of Asynchronous Wireless Optical CDMA Systems Yusuke YAMAMOTO, Kentaro KOBAYASHI, Hiraku OKADA, Masaaki KATAYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For asynchronous multiple access in optical wireless systems, we introduce optical CDMA technology. In wireless communication, because of different propagation characteristics of each user, the intensity of optical signal may not be the same. This paper discusses the impact of this signal intensity difference on the BER performance of an optical CDMA system. The system uses binary pulse position modulation (2 PPM) as modulation scheme and prime codes for signature sequences. The bit error rate of the system is analyzed considering multiple access interference (MAI). As the results, there exist the near-far problem also in wireless optical CDMA systems, but an influence of the strength and numbers of interference signals is not same to that of a CDMA system using radio waves. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OCDMA / Space Transmission / Multiple Access Interference(MAI) / Wireless Optical / Prime Code / 2PPM Modulation |
| Paper # | RCS2014-267 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2014/12/11(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) | Impact of Signal Intensity Differences on the BER Performance of Asynchronous Wireless Optical CDMA Systems |
| Sub Title (in English) | |
| Keyword(1) | OCDMA |
| Keyword(2) | Space Transmission |
| Keyword(3) | Multiple Access Interference(MAI) |
| Keyword(4) | Wireless Optical |
| Keyword(5) | Prime Code |
| Keyword(6) | 2PPM Modulation |
| 1st Author's Name | Yusuke YAMAMOTO |
| 1st Author's Affiliation | Department of Electrical Engineering and Computer Science, Nagoya University() |
| 2nd Author's Name | Kentaro KOBAYASHI |
| 2nd Author's Affiliation | Ecotopia Science Institute, Nagoya University |
| 3rd Author's Name | Hiraku OKADA |
| 3rd Author's Affiliation | Ecotopia Science Institute, Nagoya University |
| 4th Author's Name | Masaaki KATAYAMA |
| 4th Author's Affiliation | Ecotopia Science Institute, Nagoya University |
| Date | 2014-12-19 |
| Paper # | RCS2014-267 |
| Volume (vol) | vol.114 |
| Number (no) | 372 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |