| Paper Abstract and Keywords |
| Presentation |
2005-05-27 10:40
A Flexible Optical CDMA System Using Optical Orthogonal Codes with Unequal Weights
Tetsuo Tsujioka, Kazunari Inoue, Hisayoshi Sugiyama (Osaka City Univ.), Masashi Murata (Ryukoku Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
An optical orthogonal code (OOC) is one of attractive research topics for fully optical CDMA systems. Well-known OOCs are time-spreading type codes, while recent OOCs include frequency-spreading type codes that can be generated by innovative FBG encoder technologies. In this paper, frequency-spreading type OOCs with unequal weights to solve a near-far problem in optical CDMA systems have been studied. We have proposed that partial codes of MQC are used as the unequal-weight codes. BER performance is derived by a Gaussian approximation technique.
The capacity of the CDMA system is also obtained. The results show that the proposed OOCs can provide flexible performance even when user's received power ratio becomes large. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Optical Orthogonal Codes (OOC) / Fiber Bragg Gratings (FBG) / Code Weights / Modified Quadratic Congruence (MQC) Codes / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 85, IT2005-25, pp. 17-22, May 2005. |
| Paper # |
IT2005-25 |
| Date of Issue |
2005-05-20 (IT) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
IT |
| Conference Date |
2005-05-25 - 2005-05-27 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Univ. of Hawaii |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
general |
| Paper Information |
| Registration To |
IT |
| Conference Code |
2005-05-IT |
| Language |
English |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A Flexible Optical CDMA System Using Optical Orthogonal Codes with Unequal Weights |
| Sub Title (in English) |
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| Keyword(1) |
Optical Orthogonal Codes (OOC) |
| Keyword(2) |
Fiber Bragg Gratings (FBG) |
| Keyword(3) |
Code Weights |
| Keyword(4) |
Modified Quadratic Congruence (MQC) Codes |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Tetsuo Tsujioka |
| 1st Author's Affiliation |
Osaka City University (Osaka City Univ.) |
| 2nd Author's Name |
Kazunari Inoue |
| 2nd Author's Affiliation |
Osaka City University (Osaka City Univ.) |
| 3rd Author's Name |
Hisayoshi Sugiyama |
| 3rd Author's Affiliation |
Osaka City University (Osaka City Univ.) |
| 4th Author's Name |
Masashi Murata |
| 4th Author's Affiliation |
Ryukoku University (Ryukoku Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2005-05-27 10:40:00 |
| Presentation Time |
20 minutes |
| Registration for |
IT |
| Paper # |
IT2005-25 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.85 |
| Page |
pp.17-22 |
| #Pages |
6 |
| Date of Issue |
2005-05-20 (IT) |