Two-level OOC-based fiber-optic CDMA systems with QoS using optical analog-digital converter (ADC)

Babak M. Ghaffari; Jawad A. Salehi

doi:10.1117/12.852204

25 November 2009 Two-level OOC-based fiber-optic CDMA systems with QoS using optical analog-digital converter (ADC)

Babak M. Ghaffari, Jawad A. Salehi

Proceedings Volume 7632, Optical Transmission Systems, Switching, and Subsystems VII; 76320Q (2009) https://doi.org/10.1117/12.852204
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

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.

Citation Download Citation

Babak M. Ghaffari and Jawad A. Salehi "Two-level OOC-based fiber-optic CDMA systems with QoS using optical analog-digital converter (ADC)", Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 76320Q (25 November 2009); https://doi.org/10.1117/12.852204

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KEYWORDS

Logic devices

Receivers

Optical amplifiers

Fiber optics

Optical components

Telecommunications

Transmitters

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