Performance Analysis of Spectral Amplitude Coding-Optical Code Division Multiple Access (SAC-OCDMA) in Free Space Optical Networks with a Multi-wavelength Laser Source

被引：0
|
作者：
Moghaddasi, M. [1 ]
Taiwo, A. [1 ]
Seyedzadeh, S. [2 ]
Boroon, M. [1 ]
Hitam, S. [1 ]
Anas, S. B. A. [1 ]
机构：
[1] Univ Putra Malaysia, Fac Engn, Dept Comp & Commun Syst Engn, Wireless & Photon Networks Res Ctr Excellence WiP, Upm Serdang 43400, Selangor, Malaysia
[2] Univ Malaya, Fac Engn, Dept Elect Engn, Integrated Lightwave Res Grp, Kuala Lumpur 50603, Malaysia
来源：
LASERS IN ENGINEERING | 2017年 / 38卷 / 1-2期
关键词：
Free space optics (FSO); Wireless optical networks; Multi-wavelength laser; Laser array; Optical code division multiple access (OCDMA); Spectral amplitude coding (SAC); CDMA SYSTEMS; FSO; IMPACT;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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, theta, 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 theta were utilized; moreover, it is shown that the increment of turbulence increases jitter, which downgrades system performance.
引用
收藏
页码：67 / 80
页数：14
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