Performance analysis of Spectral Amplitude Coding-Optical Code Division Multiple Access (SAC-OCDMA) in free space optical networks with a multi-wavelength laser source

Majid Moghaddasi, Ambali Taiwo, Saleh Seyedzadeh, Moahammad Boroon, Salasiah Hitam, Siti Barirah Ahmad Anas

Research output: Contribution to journalArticle

Abstract

We present spectral amplitude coding, optical code division multiple access technique in free space optical network utilizing multi-wavelength laser source. Using the simulation software, the system performance is analysed while the impact of the turbulence is also considered. The simulation is implemented using modified double weight (MDW) code and for three users. The results show that using receiver aperture diameter, D, of 4 cm and beam divergence, θ, of 1 mrad, transmission distance 2.8, 2.45 and 2.25 km is achievable for weak, moderate and strong turbulence, respectively. This distance can be improved if bigger D or smaller θ were utilized; moreover, it is shown that the increment of turbulence increases jitter, which downgrades system performance.
LanguageEnglish
Pages67-80
Number of pages14
JournalLasers in Engineering
Volume38
Issue number1-2
Publication statusPublished - 31 Dec 2017

Fingerprint

code division multiple access
Fiber optic networks
Code division multiple access
coding
Turbulence
turbulence
Wavelength
Lasers
wavelengths
lasers
Jitter
divergence
simulation
receivers
apertures
computer programs
vibration

Keywords

  • free space optics (FSO)
  • wireless optical networks
  • multi-wavelength laser
  • laser array
  • optical code division multiple access (OCDMA)
  • spectral amplitude coding (SAC)

Cite this

Moghaddasi, Majid ; Taiwo, Ambali ; Seyedzadeh, Saleh ; Boroon, Moahammad ; Hitam, Salasiah ; Anas, Siti Barirah Ahmad. / Performance analysis of Spectral Amplitude Coding-Optical Code Division Multiple Access (SAC-OCDMA) in free space optical networks with a multi-wavelength laser source. In: Lasers in Engineering. 2017 ; Vol. 38, No. 1-2. pp. 67-80.
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abstract = "We present spectral amplitude coding, optical code division multiple access technique in free space optical network utilizing multi-wavelength laser source. Using the simulation software, the system performance is analysed while the impact of the turbulence is also considered. The simulation is implemented using modified double weight (MDW) code and for three users. The results show that using receiver aperture diameter, D, of 4 cm and beam divergence, θ, of 1 mrad, transmission distance 2.8, 2.45 and 2.25 km is achievable for weak, moderate and strong turbulence, respectively. This distance can be improved if bigger D or smaller θ were utilized; moreover, it is shown that the increment of turbulence increases jitter, which downgrades system performance.",
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Performance analysis of Spectral Amplitude Coding-Optical Code Division Multiple Access (SAC-OCDMA) in free space optical networks with a multi-wavelength laser source. / Moghaddasi, Majid; Taiwo, Ambali; Seyedzadeh, Saleh; Boroon, Moahammad; Hitam, Salasiah; Anas, Siti Barirah Ahmad.

In: Lasers in Engineering, Vol. 38, No. 1-2, 31.12.2017, p. 67-80.

Research output: Contribution to journalArticle

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AU - Boroon, Moahammad

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KW - laser array

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KW - spectral amplitude coding (SAC)

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