Rain attenuation statistics over millimeter wave bands in South Korea

Shrestha, Sujan; Choi, Dong-You

doi:10.1016/j.jastp.2016.11.004

Cited by 49 publications

(55 citation statements)

References 17 publications

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“…The effect increases further with higher frequency bands, rainfall rates, longer path length, and larger raindrop sizes. This attenuation, caused by rain, reduces the reliability, systems availability, reception of signal‐to‐interference‐plus‐noise ratio (SINR), and overall performance of the communications link . As a result, rain attenuation is a real and concerning issue facing the implementation of mm‐waves, especially in tropical regions with consistent heavy rainfall such as Malaysia.…”

Section: The Effect Of Rain On the Propagation Of Mm‐wavesmentioning

confidence: 99%

“…Rainfall is a significant impediment that obstructs the propagation of mm‐wave signals from transmitter to receiver. Millimeter‐wave signals can be absorbed, scattered, depolarized, and diffracted by rain . This can restrict the propagation of mm‐wave signals, causing high signal attenuation loss through the effective propagation path length (km) measured in dB/km.…”

Section: Introductionmentioning

confidence: 99%

“…Rain attenuation harshly increases when the frequency, rain density, or effective length are increased. This attenuation reduces the reliability, availability, and degraded the overall performance of the communications link . As a result, rain attenuation is a real and concerning issue facing the implementation of mm‐waves, especially in tropical regions with consistent heavy rainfall.…”

Section: Introductionmentioning

confidence: 99%

“…Several rain attenuation studies have been conducted to investigate the effect of rain on the propagation of mm‐wave bands in different environments while considering several scenarios. A number of these studies succeeded in conducting measurements . They gave indications about the behavior of mm‐wave band propagation during precipitation.…”

Section: Introductionmentioning

confidence: 99%

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Rain attenuation of millimetre wave above 10 GHz for terrestrial links in tropical regions

Shayea

Rahman

Azmi

et al. 2018

Trans Emerging Tel Tech

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Millimeter waves (mm‐waves) within frequency bands of 10 to 86 GHz will be used for both microwave and access link fifth‐generation (5G) systems. Thus, it is very important to investigate these bands to ensure reliability when 5G is applied in tropical regions like Malaysia in the coming few years. One of the major obstacles facing the propagation of mm‐waves in tropical regions is the rain attenuation. Rainfall results in the absorption, scattering, and diffraction of radio waves. This contributes to increased transmission losses and a reduction in the received signal levels. The effect is more severe in tropical regions that are characterized by intense heavy rainfall and large raindrop sizes. This paper provides a general overview on rain attenuation of mm‐wave bands. It highlights the nature of rain in tropical regions and its effects on the propagation of mm‐waves. It also reports the latest measurement studies focused on rain attenuation in mm‐wave frequency bands and the prediction methods used to estimate rain attenuation in mm‐waves. It contributes to the understanding of channel behavior and the characterization of mm‐wave bands during rainfall in tropical regions, especially in Malaysia. This study further strives to determine research gaps in this field as well as the future work and various propagation measurement systems that can be used to conduct real measurements and to develop prediction models for rain attenuation in mm‐waves for 5G systems. Furthermore, this paper analyzes the rain rate and rain attenuation on the basis of real measurement data conducted in Universiti Teknologi Malaysia at Skudai Campus, Malaysia. The analyzed results indicated that the rain attenuation at 38 GHz is critical and it can result in 18.4 dB/km as specific rain attenuation at 0.01% percentage of the time.

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Section: The Effect Of Rain On the Propagation Of Mm‐wavesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rain attenuation of millimetre wave above 10 GHz for terrestrial links in tropical regions

Shayea

Rahman

Azmi

et al. 2018

Trans Emerging Tel Tech

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“…Pada rentang tersebut, hujan merupakan faktor paling dominan yang berpengaruh terhadap kualitas sinyal yang dipancarkan, arah downlink maupun uplink (Lakanchanh, Leelaruji, Hemmakorn, & Moriya, 2005;Maruddani et al, 2011). Nilai redaman hujan terhadap sinyal komunikasi dapat dihitung menggunakan persamaan 1 dan 2 yang merujuk pada rekomendasi ITU-R P. 838-8 (ITU-R, 2005;Shrestha & Choi, 2017) Persamaan 1:…”

Section: Pengaruh Aspek Frekuensi Dan Cuaca Terhadap Komunikasi Satelitunclassified

Peluang dan Tantangan Pemanfaatan Frekuensi Ka-Band untuk Sistem Komunikasi Satelit [Opportunities and Challenges upon Usage of Ka-band Frequency for Satellite Communication System]

Pradono¹

2017

bul. pos. dan telekomun.

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A B S T R A KKata kunci : Ka-band Satelit Pitalebar Frekuensi Pertumbuhan trafik data jauh melampaui pertumbuhan trafik suara. Cisco memprediksi trafik data bergerak di Indonesia akan meningkat sebesar 8 kali lipat dalam periode 2016-2021. Teknologi pitalebar merupakan solusi tepat untuk memfasilitasi peningkatan trafik data sekaligus menjaga kualitas layanan tetap optimal. Kondisi medan wilayah rural Indonesia sulit dijangkau oleh sistem terestrial sehingga teknologi satelit sangat dibutuhkan agar penetrasi layanan pitalebar dapat menjangkau wilayah tersebut. Menimbang sejumlah keunggulan dari satelit Ka-band dibandingkan sistem satelit yang ada saat ini membuat satelit Ka-band menjadi salah satu teknologi kunci yang memungkinkan penetrasi layanan pitalebar hingga wilayah rural. Studi literatur dan pendekatan kualitatif digunakan dalam studi ini untuk mengidentifikasi potensi dan tantangan yang dihadapi Indonesia dalam pengembangan sistem satelit Ka-band. Hasil studi menunjukkan satelit Ka-band mampu memfasilitasi layanan telekomunikasi yang membutuhkan bandwidth besar. Pengguna layanan satelit juga bervariasi meliputi industri, institusi pemerintah, hingga konsumen individu dan rumah tangga. Meskipun satelit Ka-band menawarkan sejumlah keunggulan, ada beberapa tantangan yang harus diantisipasi yakni kerentanan frekuensi Ka-band terhadap redaman hujan dan ketiadaan filing Ka-band milik Indonesia dengan status disetujui oleh International Telecommunication Union (ITU).

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Tropospheric attenuation prediction for future millimeter wave terrestrial systems: Estimating statistics and extremes

Liu

Matolak

Güvenç

et al. 2022

Int J Communication

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Summary Tropospheric attenuations can be significant in the millimeter wave (mmWave) frequency bands; hence, accurate prediction modeling of tropospheric attenuation is important for reliable mmWave communication. Several models have been established by the International Telecommunication Union (ITU), yet estimation accuracy is limited due to the large spatial scales used for model input parameters. In this paper, we address this and apply local precipitation data to analyze tropospheric attenuation statistics and compare to results when using ITU regional input rain data. Specifically, tropospheric attenuation is predicted via simulations using the ITU method at 30, 60, and 90 GHz in four distinct geographic locations with different climate types. From our simulations, we gather statistics for annual average rain attenuation, worst month rain attenuation, and rain attenuation per decade. Our results indicate that when using local measured rain data, for 1 km link distance, mean rain event attenuation increases from 0.5 to 2 dB. Local rain data yield larger attenuations at essentially all percentages of time not exceeded (essentially corresponding to all probability values): for example, for 0.1% of time not exceeded, in Columbia, SC, rain attenuation for 30 GHz frequency increases to 9 dB with local rain data, compared to 5 dB with ITU's regional data, corresponding to rain rates of 38.2 and 17.5 mm/h, respectively; at the same probability and location, the 90 GHz attenuation increases by 10 dB, from 10 to 20 dB when local rain data are used. Fog attenuations are also appreciable, reaching 8 dB for the 90 GHz frequency. Moreover, for the example locations, peak rain attenuations have increased at a rate of approximately 2 dB/decade over the past 50 years. Our results indicate that actual tropospheric attenuations may be substantially larger than that predicted by the ITU model when using regional rain rate data.

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Rain attenuation statistics over millimeter wave bands in South Korea

Cited by 49 publications

References 17 publications

Rain attenuation of millimetre wave above 10 GHz for terrestrial links in tropical regions

Rain attenuation of millimetre wave above 10 GHz for terrestrial links in tropical regions

Peluang dan Tantangan Pemanfaatan Frekuensi Ka-Band untuk Sistem Komunikasi Satelit [Opportunities and Challenges upon Usage of Ka-band Frequency for Satellite Communication System]

Tropospheric attenuation prediction for future millimeter wave terrestrial systems: Estimating statistics and extremes

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