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DC Field | Value | Language |
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dc.contributor.advisor | Khairayu Badron, Ph.D | en_US |
dc.contributor.advisor | Md. Rafiqul Islam, Ph.D | en_US |
dc.contributor.advisor | Ahmad Fadzil Ismail, Ph.D | en_US |
dc.contributor.author | Nurul Arbatun Adawiyah Zamanuri | en_US |
dc.date.accessioned | 2023-08-02T05:41:46Z | - |
dc.date.available | 2023-08-02T05:41:46Z | - |
dc.date.issued | 2022 | - |
dc.identifier.uri | http://studentrepo.iium.edu.my/handle/123456789/11564 | - |
dc.description.abstract | In recent years, the demand for satellite communication has increased which led to spectral congestion. The frequency bands for the satellite that are currently used, which are L(1-2GHz), S (2-3GHz), C (4-6GHz), Ku (12-14 GHz) and Ka (20-30 GHz). Recently, the satellite services use Ku and Ka-band as additional spectrum for satellite communication services. Ku and Ka-band are categorized as high frequency range which is around 12 to 14 GHz and 20 to 30 GHz respectively. Rationally, the Ku and Ka-band are more suitable in broadcasting as it satisfies the capacity of the signal required. Besides its frequency range, the size of the receiver antenna must be small which will offer easier installation. Because of that, the antenna must be designed in high frequency to support the small antenna. However, the higher frequency will affect the quality of services and lead to signal impairment. This is mainly caused by the atmosphere effect which is oxygen, liquid water, and precipitation. But among the list, rain causes most signal fading due to the scattering and depolarization. The aim of this research is to study the site diversity as mitigation techniques operating at Ku and Ka-band for enhancing the gain of the signal and calculating diversity gain. There are modelling of diversity gain that has been proposed by previous researchers namely Hodge, Panagopolous, ITU-R, X.yeo and Semire models which were validated in different climate regions respectively. By using all previous modelling of diversity gain, it will also compare with the measured diversity gain. Suitable modelling that can be used in this tropical region has been proposed by improving the mathematical model that will be suitable in the tropical regions. This is important for encouraging the finding of new theories for the future broadcasting systems to decrease the power loss during the rain fade. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Kuala Lumpur : Kulliyyah of Engineering, International Islamic University Malaysia, 2022 | en_US |
dc.subject.lcsh | Artificial satellites in telecommunication -- Malaysia | en_US |
dc.subject.lcsh | Microwaves -- Attenuation -- Malaysia | en_US |
dc.subject.lcsh | Rain and rainfall -- Malaysia | en_US |
dc.title | Evaluation of site diversity mitigation techniques for satellite service for KU and KA-band in Malaysia | en_US |
dc.type | Master Thesis | en_US |
dc.description.identity | t11100387728NurulArbatunAdawiyahBintiZamanuri | en_US |
dc.description.identifier | Thesis : Evaluation of site diversity mitigation techniques for satellite service for KU and KA-band in Malaysia / by Nurul Arbatun Adawiyah binti Zamanuri | en_US |
dc.description.kulliyah | Kulliyyah of Engineering | en_US |
dc.description.programme | Master of Science (Communication Engineering) | en_US |
dc.description.abstractarabic | ازداد الطلب على الاتصالات الساتلية في السنوات الأخيرة, مما أدى إلى ازدحام طيفي. نطاقات التردد الحالية للأقمار الصناعية هي L (1-2 جيجا هرتز), S (2-3 جيجا هرتز), C (3-5 جيجا هرتز) و (4-6 جيجا هرتز). بالنسبة لخدمات البث , يستخدم القمر الصناعي عادةً نطاقات C و Ku و Ka. بالإضافة إلى ذلك, يعمل نطاقي Ku و Ka بترددات عالية تتراوح من 12 إلى 14 جيجاهرتز و 20 إلى 30 جيجاهرتز على التوالي. يعد نطاقي Ku و Ka أكثر ملائمة للبث نظرًا لأنهما يفيان بقدرة الإشارة المطلوبة. بصرف النظر عن مدى التردد , يجب أن يكون هوائي الاستقبال مضغوطًا من أجل تسهيل التثبيت. نتيجة لذلك, يجب أن يكون الهوائي عالي التردد لدعم الهوائي الصغير. ومع ذلك , فإن التردد المتزايد سيكون له تأثير على جودة الخدمة وقد يؤدي إلى تدهور الإشارة. التأثير الجوي , الذي يشمل الأكسجين والماء السائل وهطول الامطار , هو السبب الرئيسي. و على ذلك , فإن المطر هو الذي يتسبب في أكبر خبو للإشارة بسبب التشتت وإزالة الاستقطاب. الهدف من هذه الدراسة هو النظر في تنوع الموقع لنهج التخفيف التي تعمل في نطاقي Ku و Ka لزيادة كسب الإشارة وحساب كسب التنوع باستخدام جميع نماذج اكتساب التنوع السابقة ومقارنتها بكسب التنوع المقاس. من الممكن اقتراح نمذجة مناسبة لهذه المنطقة الاستوائية. هذا لتعزيز تطوير نظريات جديدة لأنظمة البث المستقبلية لتقليل فقد القدرة أثناء الخبو الناجم عن المطر. | en_US |
dc.description.nationality | Malaysian | en_US |
dc.description.callnumber | t TK 5104 N974E 2022 | en_US |
dc.description.notes | Thesis (MSCE)--International Islamic University Malaysia, 2022. | en_US |
dc.description.physicaldescription | xvii, 86 leaves : illustrations ; 30cm. | en_US |
item.openairetype | Master Thesis | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
Appears in Collections: | KOE Thesis |
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t11100387728NurulArbatunAdawiyahBintiZamanuri_24.pdf | 24 pages file | 663.17 kB | Adobe PDF | View/Open |
t11100387728NurulArbatunAdawiyahBintiZamanuri_SEC.pdf Restricted Access | Full text secured file | 1.95 MB | Adobe PDF | View/Open Request a copy |
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