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

Ghaffari, B. M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1117/12.852204
  3. Abstract:
  4. 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. © 2009 SPIE-OSA-IEEE
  5. Keywords:
  6. Multilevel signaling ; OOC ; Optical ADC ; Optical logic gates ; Qos ; Class 1 ; Fiber-optic CDMA ; Logic gate structure ; Multi-access interference ; Optical analog ; Optical CDMA ; Optical logic gate ; Optical pulse ; Power levels ; Receiver structure ; Signaling techniques ; Two-level system ; Code division multiple access ; Electric power transmission ; Fiber optics ; Logic gates ; Multicarrier modulation ; Signaling ; Light transmission
  7. Source: Proceedings of SPIE - The International Society for Optical Engineering, 2 November 2009 through 6 November 2009, Shanghai ; Volume 7632 , 2009 ; 0277786X (ISSN) ; 9780819480347 (ISBN)
  8. URL: http://ieeexplore.ieee.org/abstract/document/5377269