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Proceedings Paper

Two-level OOC-based fiber-optic CDMA systems with QoS using optical analog-digital converter (ADC)
Author(s): Babak M. Ghaffari; Jawad A. Salehi
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Paper Abstract

A novel two-level signaling technique in OOC-based fiber-optic CDMA systems is proposed. Users of the system are categorized into two classes. Users of class 1 and 2 transmit the optical pulses at power level P and 2P respectively. We study two kinds of receiver structure for the proposed two-level system. For the first structure we use ordinary AND logic gate and for the second one we use optical ADC with AND logic gate structure. We obtain the system performance and we show that for the two-level signaling multi-access interference is considerably suppressed. Two-level signaling increase system performance and capacity and also presents different QoS for the users in two classes.

Paper Details

Date Published: 25 November 2009
PDF: 8 pages
Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 76320Q (25 November 2009); doi: 10.1117/12.852204
Show Author Affiliations
Babak M. Ghaffari, Sharif Univ. of Technology (Iran, Islamic Republic of)
Jawad A. Salehi, Sharif Univ. of Technology (Iran, Islamic Republic of)

Published in SPIE Proceedings Vol. 7632:
Optical Transmission Systems, Switching, and Subsystems VII
Dominique Chiaroni, Editor(s)

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