1 October 2001 Analysis of the higher order signals in fiber optic code-division multiple access networks using series coupler access encoder and series coupler access decoder
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Optical Engineering, 40(10), (2001). doi:10.1117/1.1397301
Abstract
Fiber optic code-division multiple access (FO-CDMA) networks using optical series coupler access encoders (SCAEs) and series coupler access decoders (SCADs) are analyzed considering the higher order signals of the optical matched filter. By mathematically interpreting the inevitable interference effect of the higher order signals up to the third order, we found that the performance of the FO-CDMA networks could be seriously degraded due to the sidelobe peaks increased by the higher order signals. We also found that the interference signal intensities increase according to the increase of coupling coefficient (?). Compared with the conventional analysis without considering the higher order signals, the peak-to-sidelobe ratio considering the higher order signals is degraded, for example, by 3.75 dB for N(coupler number) = 5, ? = 0.5, and the code length of 341.
Tae-Gu Kang, Young-Wan Choi, "Analysis of the higher order signals in fiber optic code-division multiple access networks using series coupler access encoder and series coupler access decoder," Optical Engineering 40(10), (1 October 2001). http://dx.doi.org/10.1117/1.1397301
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KEYWORDS
Computer programming

Signal detection

Code division multiplexing

Fiber optics

Electronic filtering

Optical engineering

Signal processing

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