Modified ITU-R rain attenuation model for equatorial climate

Mandeep, J. S.; Hui, Ooi Wen; Abdullah, Mardina; Tariqul, M; Ismail, Mahamod; Suparta, Wayan; Yatim, Baharudin; Menon, P. Susthitha; Abdullah, Huda

doi:10.1109/iconspace.2011.6015858

Cited by 21 publications

(14 citation statements)

References 6 publications

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“…Moreover, raindrops in the link between the satellite and Earth station exert a paramount effect on the quality of the signal at higher frequencies, particularly above 10 GHz [5]. Figure 1 shows the attenuation variation for different frequency values we calculated in Selangor, Malaysia for 0.01% of the time exceedance, using the International Telecommunication Union (ITU) prediction model [6,7] which has been proven to be an acceptable prediction model for rain attenuation calculations in tropical regions [8][9][10]. Figure 1 clearly shows that the elevation angle also considerably affects the signal.…”

Section: Methodsmentioning

confidence: 99%

Earth-Sky Link Quality Performance for Fixed and Mobile Scenarios in Tropical Regions

Al-Saegh

Sali

Mandeep³

et al. 2013

PIER C

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Recent advances in satellite communication technologies in the tropical regions have led to significant increase in the demand for services and applications that require high channel quality for fixed and mobile satellite terminals. Due to lack of reliable investigations regarding accurate performance evaluation, experiments, and analysis on the satellite communication link in tropical regions under atmospheric impairments for both scenarios, accurate signal quality performance analysis is necessary. This paper presents the link characteristics observations and performance analysis with propagation measurements done in tropical region to provide an accurate database regarding rain attenuation in the tropics for fixed and mobile scenarios. The paper also presents a newly developed extension attached to the measurements setup for improved packet error rate (PER) performance evaluation related to the degradations occur in channel quality for different types of impairments (rain, mobility, and physical obstacles) for 4 modulation schemes, namely QPSK, 8-PSK, 16-QAM and 32-QAM. The results show that the rain impairments at Ku band cause up to 12.5 dB and 23 dB at 77.5 • and 40.1 • elevation angles respectively in two tropical regions inside Malaysia for fixed scenario with a significant increase in PER at higher M-ary modulation schemes. For mobile scenario the PER appeared at higher M-ary scheme due to the lower signal power degradation in which, in turn, exceeded 1 dB when the vehicle speed exceed 100 km/hr

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Section: Methodsmentioning

confidence: 99%

Earth-Sky Link Quality Performance for Fixed and Mobile Scenarios in Tropical Regions

Al-Saegh

Sali

Mandeep³

et al. 2013

PIER C

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“…The attenuation curves of rain rates ranging between 2 mm/hr and 50 mm/hr, such as the 10 mm/hr and 25 mm/hr rates, exist between the light and heavy rain curves in Figure 8. Moreover, the rain attenuation in the tropical region is studied in [136], where Mandeep et al proposed a modified ITU-R rain-attenuation model based on the curve fitting method for characterizing extremely heavy tropical rain, which was underestimated in the ITU-R model [137]. Light and heavy rain-rates impose a maximum of 2.55 dB/Km and 20 dB/Km, respectively, at the upper frequency bands of mmWaves.…”

Section: Rain-induced Fadingmentioning

confidence: 99%

Millimeter-Wave Communications: Physical Channel Models, Design Considerations, Antenna Constructions, and Link-Budget

Hemadeh

Satyanarayana

El‐Hajjar

et al. 2018

IEEE Commun. Surv. Tutorials

531

393

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Abstract-The millimeter wave (mmWave) frequency band spanning from 30 GHz to 300 GHz constitutes a substantial portion of the unused frequency spectrum, which is an important resource for future wireless communication systems in order to fulfill the escalating capacity demand. Given the improvements in integrated components and enhanced power efficiency at high frequencies, wireless systems can operate in the mmWave frequency band. In this paper, we present a survey of the mmWave propagation characteristics, channel modeling and design guidelines, such as system and antenna design considerations for mmWave, including the link budget of the network, which are essential for mmWave communication systems. We commence by introducing the main channel propagation characteristics of mmWaves followed by channel modeling and design guidelines. Then, we report on the main measurement and modeling campaigns conducted in order to understand the mmWave band's properties and present the associated channel models. We survey the different channel models focusing on the channel models available for the 28 GHz, 38 GHz, 60 GHz and 73 GHz frequency bands. Finally, we present the mmWave channel model and its challenges in the context of mmWave communication systems design.

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“…The ITU-R models the world into 15 different parts. The judgement made for this is based on best mean cumulative distribution experimental [10]. Percentage of rainfall rate exceeded for Malaysia is shown in Table 1.…”

Section: Itu-rmentioning

confidence: 99%

Development of software for Ku-Band signal availability due to rain attenuation

Ya’acob¹,

Tajudin²,

Alui³

et al. 2019

IJEECS

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<span>Ku-Band signal is often used for satellite communication mainly for direct to home (DTH) broadcasting. One of the major issues using this band is that the signal will be affected by raindrops. Raindrops absorb and scatter signal that operates at a frequency of more than 10 GHz. However, studies have been done to predict and measure the rainfall rate and rain attenuation. The rain attenuation in Ku-Band range and the rain rate were measured at satellite receiving dish, pointed towards the orbital slot 91.5 E over a one-year period in 2013. The cumulative distribution of rain rate obtained as well as a cumulative distribution of rain attenuation obtained are presented and compared with the rain prediction models. The aim is to get the best model to be used for the purpose of software development. It was found out that the DAH prediction model is fairly equitable when compared to direct satellite dish receiving measurements in Malaysia. The model provided a suitable baseline in developing a user interface software for weather prediction.</span>

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Modified ITU-R rain attenuation model for equatorial climate

Cited by 21 publications

References 6 publications

Earth-Sky Link Quality Performance for Fixed and Mobile Scenarios in Tropical Regions

Earth-Sky Link Quality Performance for Fixed and Mobile Scenarios in Tropical Regions

Millimeter-Wave Communications: Physical Channel Models, Design Considerations, Antenna Constructions, and Link-Budget

Development of software for Ku-Band signal availability due to rain attenuation

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