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2020•Unpublished venueOpen access

Long Term Rain Attenuation Measurements at Millimeter Wave Bands for Direct and Side Short-Range Fixed Links

O. Zahid, Jing-Jian Huang, Sana Salous

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Abstract

Millimeter wave (mmWave) radio links are largely affected by precipitation. In this paper, we use a custom-designed continuous wave (CW) channel sounder to record channel data at K band (25.84 GHz) and E band (77.52 GHz) for direct line of sight link and a side non line of sight link with dual polarizations. A high-performance PWS100 disdrometer is utilized to collect weather data, including rain rate and rain drop size distribution (DSD) for rain attenuation study. The rain attenuation for both links are compared. The side link exhibits a slightly higher attenuation than the direct link. The ITU-R P.838-3 model and DSD model are applied to model the rain attenuation. The results will be useful for the design of fixed links for fifth generation (5G) mmWave communication systems.

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What this paper is about

Millimeter wave (mmWave) radio links are largely affected by precipitation. In this paper, we use a custom-designed continuous wave (CW) channel sounder to record channel data at K band (25.84 GHz) and E band (77.52 GHz) for direct line of sight link and a side non line of sight link with dual polarizations. A high-performance PWS100 disdrometer is utilized to collect weather data, including rain rate and rain drop size distribution (DSD) for rain attenuation study. The rain attenuation for both links are compared. The side link exhibits a slightly higher attenuation than the direct link. The ITU-R P.838-3 model and DSD model are applied to model the rain attenuation. The results will be useful for the design of fixed links for fifth generation (5G) mmWave communication systems.

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Available abstract

Millimeter wave (mmWave) radio links are largely affected by precipitation. In this paper, we use a custom-designed continuous wave (CW) channel sounder to record channel data at K band (25.84 GHz) and E band (77.52 GHz) for direct line of sight link and a side non line of sight link with dual polarizations. A high-performance PWS100 disdrometer is utilized to collect weather data, including rain rate and rain drop size distribution (DSD) for rain attenuation study. The rain attenuation for both links are compared. The side link exhibits a slightly higher attenuation than the direct link. The ITU-R P.838-3 model and DSD model are applied to model the rain attenuation. The results will be useful for the design of fixed links for fifth generation (5G) mmWave communication systems.

Key concepts: Disdrometer, Attenuation, Extremely high frequency, Environmental science, Remote sensing, Millimeter, Line-of-sight, Non-line-of-sight propagation

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