Performance of 1-D and 2-D OCDMA systems in presence of atmospheric turbulence and various weather conditions

被引：12
|
作者：
Yadav, Ajay [1 ]
Kar, Subrat [2 ]
Jain, Virander Kumar [2 ]
机构：
[1] Indian Inst Technol Delhi, Bharti Sch Telecommun Technol & Management, New Delhi 110016, India
[2] Indian Inst Technol Delhi, Dept Elect Engn, New Delhi 110016, India
来源：
IET COMMUNICATIONS | 2017年 / 11卷 / 09期
关键词：
code division multiple access; atmospheric turbulence; gamma distribution; free-space optical communication; 2D optical code division multiple access system; 1D optical code division multiple access system; two-dimensional OCDMA system performance; one-dimensional OCDMA system performance; weather conditions; lognormal fading model; weak turbulence analysis; gamma-gamma model; complete link failure; free space optical communication; LINKS;
D O I：
10.1049/iet-com.2016.1008
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, the authors compare the performance of one-dimensional (1D) and two-dimensional (2D) optical code division multiple access (OCDMA) systems in presence of turbulence and various weather conditions. Lognormal fading model is used for analysis of weak turbulence and gamma-gamma model for moderate and strong turbulence. It is observed that presence of moderate and strong turbulence may lead to a complete link failure in 2D OCDMA system depending upon the number of users and turbulence level. The various weather conditions considered are very clear air, light fog and thick fog. The results show that the performance degradation due to thick fog is more than the light fog and very clear air in all turbulence regimes.
引用
收藏
页码：1416 / 1422
页数：7
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