Abstract
The signals operating at higher microwave frequency ranges get attenuated in the tropical regions where heavy rainfall occurs. Controlling of Signal fading for establishment of efficient link plays an important role in the heavy rainfall regions. Here rain attenuation predicted model has been designed in sub- 6 GHz and mm Wave bands. This predicted model is applicable to the tropical regions where heave rainfall occurs. Frequency variation technique has been adopted to execute the research work. The estimated rain attenuation depends on International Telecommunication UnionR rain mitigation forecast technique utilizing assessment of rain in the tropical regions of South East Asia.The frequency ranges used here for variation techniques are respectively 3.6 to 4.2 GHz, 4.4 to 4.9 GHz, 27.5 to29.5 GHz, 37 to-40 GHz and 64 to71 GHz. In the previous works [1] it is observed that only lower fade margin has been considered for communication link design .As the fade margin increases, the communication link seems to be more reliable. In this paper the fade margin has been increased and it has been chosen from 12dB to 16dB. This predicted model will yield better result than that of ITU-R model.
Highlights
The process of dispatching a word from one side and receiving it on the other side between a certain distance without any wire and vice versa appeared in 1970s and this process started to put its footprint from 1G to 5G
It is observed that the correction factor decreases for higher fade margins
For 5G communication i.e. for high frequency ranges when heavy rainfall occurs, rain attenuation for the 1 km path sometimes seems more important for reliability
Summary
The process of dispatching a word from one side and receiving it on the other side between a certain distance without any wire and vice versa appeared in 1970s and this process started to put its footprint from 1G to 5G. With the help of this predicted model the signal attenuation due to heavy rainfall can be minimize frequency diversity technique. In this paper the fade margin has been taken up to 16 dB to enhance the reliability of the communication link. With the increment of frequency and due to heavy rainfall the signal gets attenuated which requires high static fade margin [2]. In this paper the Static fade margin has been enhanced to make it applicable for higher microwave frequency regions. In the tropical regions the signal power level is diminished on account of high rain rate and as a result rain fade occurs and this phenomenon leads to poor quality communication system which seems to be unreliable.
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