Abstract
In this paper, a pulse-shift technique, which divides every time slot (or chip) into equal-width sub-chips, is used to model the effect of fiber temperature fluctuations in incoherent optical code-division multiple-access (O-CDMA) systems. With the advance in all-optical thresholding technology, power detection of ultrashort optical pulses is possible. This paper also formulates a new pulse-power-detection model for incoherent OCDMA and applies it to the analysis of the pulse-shift technique as a case study. Numerical studies and computer simulations are presented to validate the new analytical model. Our study presents a more realistic theoretical model of all-optical thresholding in incoherent O-CDMA and results in better performance than the conventional pulse-energy-detection model.
Original language | English |
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Pages (from-to) | 2366 - 2379 |
Number of pages | 13 |
Journal | Journal of Lightwave Technology |
Volume | 35 |
Issue number | 12 |
Early online date | 4 Apr 2017 |
DOIs | |
Publication status | Published - 15 Jun 2017 |
Keywords
- optical code division multiple access
- optical fiber communications
- temperature fluctuations
- timing skew