Presentation 2003/11/7
Optical Code-Division Multiple-Access Systems with M-ary Pulse Amplitude Modulation using the Chip-Level Receiver with M-level Threshold Detection
Takaya MIYAZAWA, Iwao SASASE,
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Abstract(in English) In this paper, we propose the optical CDMA systems with M-ary pulse-amplitude modulation(PAM) using the chip-level receiver with M-level threshold detection. The proposed system can obtain the synergistic effect, which the chip-level receiver reduces the large effect of MAI in the PAM-CDMA system with the correlator and PAM has the larger number of transmitted bits per frame than the OOK-CDMA system. As a result, the proposed system can increase the code length and the number of weights, and achieve higher tolerance to MAIs under the condition where the chip duration, the bit rate and the number of subscribers are kept constant. We show that the proposed M-ary PAM-CDMA system with the chip-level receiver achieves better bit error probability (BEP) than the OOK-CDMA system with the chip-level receiver.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optical CDMA / MAI / M-ary PAM / Chip-level receiver
Paper # CS2003-122
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Conference Information
Committee CS
Conference Date 2003/11/7(1days)
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Registration To Communication Systems (CS)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Optical Code-Division Multiple-Access Systems with M-ary Pulse Amplitude Modulation using the Chip-Level Receiver with M-level Threshold Detection
Sub Title (in English)
Keyword(1) Optical CDMA
Keyword(2) MAI
Keyword(3) M-ary PAM
Keyword(4) Chip-level receiver
1st Author's Name Takaya MIYAZAWA
1st Author's Affiliation Dept. of Information and Computer Science, Keio University()
2nd Author's Name Iwao SASASE
2nd Author's Affiliation Dept. of Information and Computer Science, Keio University
Date 2003/11/7
Paper # CS2003-122
Volume (vol) vol.103
Number (no) 415
Page pp.pp.-
#Pages 6
Date of Issue