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Title |
Comparative Study of Cloud Attenuation for Millimeter Wave Communications |
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Author |
Zahid Rauf , Ifrah Ahmed, Bushra Naeem, Jan Muhammad, Shabbar Naqvi, Rahila Umer, Hamayoun Shahwani |
| Citation |
Vol. 20 No. 10 pp. 58-64 |
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Abstract |
The loss of signal in terms of attenuation is very common problem. Signal attenuation can cause degradation in the Quality of service (QoS) in wireless communication. Networks operating over high frequency bands are highly affected by signal attenuation. This is particularly trivial in the millimeter (mm) wave bands. The number of climatic factors which cause signal attenuation include fog, cloud, rain, gas but attenuation due to clouds is a complex study because of the structure of clouds and higher probability of occurrence. It is important to investigate the effect of clouds on electromagnetic waves and to study the models of cloud attenuation as its role at mm is significant. This research work presents the comparative study of such empirical models which provides the cloud attenuation considering frequency, elevation angle and liquid water content as input parameters. Simulated results showed that liquid water content and frequency are directly proportional to cloud attenuation while at lower elevation angle the cloud attenuation is higher. Moreover, Dissanayake-Allnutt-Haidara (DAH) model has the lowest attenuation loss as compared to other models. |
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Keywords |
Cloud attenuation, prediction models, millimeter (mm) wave |
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URL |
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Title |
Comparative Study of Cloud Attenuation for Millimeter Wave Communications |
|
Author |
Zahid Rauf , Ifrah Ahmed, Bushra Naeem, Jan Muhammad, Shabbar Naqvi, Rahila Umer, Hamayoun Shahwani |
| Citation |
Vol. 20 No. 10 pp. 58-64 |
|
Abstract |
The loss of signal in terms of attenuation is very common problem. Signal attenuation can cause degradation in the Quality of service (QoS) in wireless communication. Networks operating over high frequency bands are highly affected by signal attenuation. This is particularly trivial in the millimeter (mm) wave bands. The number of climatic factors which cause signal attenuation include fog, cloud, rain, gas but attenuation due to clouds is a complex study because of the structure of clouds and higher probability of occurrence. It is important to investigate the effect of clouds on electromagnetic waves and to study the models of cloud attenuation as its role at mm is significant. This research work presents the comparative study of such empirical models which provides the cloud attenuation considering frequency, elevation angle and liquid water content as input parameters. Simulated results showed that liquid water content and frequency are directly proportional to cloud attenuation while at lower elevation angle the cloud attenuation is higher. Moreover, Dissanayake-Allnutt-Haidara (DAH) model has the lowest attenuation loss as compared to other models. |
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Keywords |
Cloud attenuation, prediction models, millimeter (mm) wave |
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URL |
