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Abstract Free Space Optics (FSO) shows a great alternative as the solution for last mile problem where fiber optics is unavailable due to deployment time and cost constraint.  However, the feasibility of using FSO system as communication link very much depends on local weather.  Since tropical region experiences heavy rainfall, rain with high intensity is expected to affect the FSO link severely. Few prediction models have been proposed by ITU-R based on France and Japan’s measurement. This paper has compared  rain attenuation predicted by  models and  data measured in Malaysia over Free Space Optical links for one year period. Prediction models are clearly unable to predict attenuation measured in tropical climate. ABSTRAK: Wayarles optik menjadi alternatif sebagai satu penyelesaian kepada masalah kesesakan terutama diakhir sesuatu talian dimana ianya tidak dapat diselesaikan dengan menggunakan gentian fiber akibat daripada kekangan masa pemasangan dan masalah kewangan.  Walaubagaimanapun, kejayaan untuk menggunakan wayarless optic ini amat bergantung kepada keadaan cuaca di sesuatu tempat.  Di rantau tropika  hujan lebat sentiasa dialami, oleh itu hujan dengan kepadatan tinggi adalah dijangkakan lebih memberi kesan kepada talian wayarles optic ini. Beberapa model yang telah dicadangkan oleh ITU-R berlandaskan kepada pengumpulan data yang dibuat di Perancis dan Jepun.  Kertas kajian ini akan membandingkan antara model-model yang telah digunapakai dengan data yang dikumpulkan di Malaysia selama setahun.  Jelasnya model yang telah digunapakai tidak dapat digunakan secara berkesan di rantau tropika. KEYWORDS: free space optics; rainfall rate; rain attenuation Downloads Download data is not yet available. Metrics Metrics Loading ... Downloads PDF Published 2012-01-04 How to Cite Zabidi, S. A., Islam, M. R., Al-Khateeb, W., & Naji, A. W. (2012). Analysis of Rain Effects on Terrestrial Free Space Optics based on Data Measured in Tropical Climate. IIUM Engineering Journal, 12(5). https://doi.org/10.31436/iiumej.v12i5.232 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 12 No. 5 (2011): Special Issue on Science and Ethics in Engineering Section Articles Most read articles by the same author(s) Md. Rafiqul Islam, Zain Elabdin Omer Elshaikh, Othman O. Khalifa, Ahm Zahirul Alam, Sheroz Khan, A. W. Naji, PREDICTION OF SIGNAL ATTENUATION DUE TO DUSTSTORMS USING MIE SCATTERING , IIUM Engineering Journal: Vol. 11 No. 1 (2010) Nur Haedzerin Md Noor, Ahmed Wathik Naji, Wajdi Al-Khateeb, Performance Analysis of a Free Space Optics Link with Multiple Transmitters/Receivers , IIUM Engineering Journal: Vol. 13 No. 1 (2012) Hassan Dao, Md. Rafiqul Islam, Khalid Al-Khateeb, Modification of ITU-R Rain Fade Slope Prediction Model Based on Satellite Data Measured at High Elevation Angle , IIUM Engineering Journal: Vol. 12 No. 5 (2011): Special Issue on Science and Ethics in Engineering Norhanis Aida M. Nor, Md. Rafiqul Islam, Wajdi Al-Khateeb, Feasibility Analysis Of Free Space Earth To Satellite Optical Link In Tropical Region , IIUM Engineering Journal: Vol. 12 No. 5 (2011): Special Issue on Science and Ethics in Engineering menusidebar ABOUT THE JOURNAL

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