Performance of 1-D and 2-D OCDMA systems in presence of atmospheric turbulence and various weather conditions
Performance of 1-D and 2-D OCDMA systems in presence of atmospheric turbulence and various weather conditions
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DOI：
10.1049/iet-com.2016.1008
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发表时间：
2017-03
期刊：
影响因子：
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通讯作者：
A. Bharti;Subrat Kar;V. Jain
中科院分区：
文献类型：
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作者：
A. Bharti;Subrat Kar;V. Jain
在这项研究中，作者比较了一维(1D)和二维(2D)光码分多址(OCDMA)系统在存在湍流和不同天气条件下的性能。弱湍流采用对数正态衰减模型，中、强湍流采用Gamma-Gamma模型。研究发现，在2DOCDMA系统中，中等和强湍流的存在可能会导致链路完全失效，具体取决于用户数和湍流程度。所考虑的各种天气情况包括非常晴朗的空气、轻雾和浓雾。结果表明，在所有的湍流区，浓雾对性能的影响都大于轻雾和非常晴朗的空气。
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.