Performance Analysis of an OCDMA System Based on SPD Detection Utilizing Different Type of Optical Filters for Access Networks

Adbulqader, Sarah G.; Fadhil, Hilal A.; Aljunid, S. A.; Safar, Anuar Mat

doi:10.1007/978-3-319-07674-4_31

Cited by 1 publication

(2 citation statements)

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Section: Simulation Resultsmentioning

confidence: 99%

“…For supporting multimedia services, optical Gaussian filters [30,37] are used in the proposed variable-band direct detection scheme. The inherent properties of such filters (theoretical model as close as possible to the theoretical model of an ideal filter) make it a suitable candidate for recent SAC-OCDMA detection techniques providing better performance [30,37]. In fact, while users 2, 3, and 4 detect one wavelength (𝜆 1 , 𝜆 2 , and 𝜆 3 , respectively), user 1 detects the entire sent power (three adjacent wavelengths: 𝜆 9 , 𝜆 10 , and 𝜆 11 , simultaneously) and user 5 detects two adjacent wavelengths (𝜆 4 and 𝜆 5 ).…”

Section: Simulation Resultsmentioning

confidence: 99%

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Opto-Electronics Review

Driz,

Fassi,

Kandouci

et al. 2022

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In order to minimize the receiver complexity and improve the performance of the spectral amplitude coding -optical code division multiple access system, a novel one-dimensional zero cross-correlation code using Pascal's triangle matrix has been suggested. This research article shows that the position of chip "1" in the code sequences is one of the important factors affecting system performance. In fact, mathematical results show that, for the allwavelength direct detection, it is possible to reduce the number of filters without sacrificing system performance. In addition, compared to one-wavelength direct detection, the signalto-noise ratio value is increased with an increasing weight by using wide-bandwidth filters as decoders. Performance of the proposed system in terms of the minimum bit error rate is validated using the OptiSystem software. Compared with the previous systems at 622 Mbps, the suggested system gave the best values of bit error rate of around 10 −43 , 10 −35 , and 10 −26 for higher, medium, and lower service demand, respectively.

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