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Rain Attenuation for 5G Network in Tropical Region (Malaysia) for Terrestrial Link

By Kesavan Ulaganathen, Tharek Bin Abdul Rahman, Md. Rafiqul Islam, and Khaizuran Abdullah
Progress In Electromagnetics Research Letters, Vol. 90, 99-104, 2020


Millimeter wave (mm-Wave) is today's breakthrough frontier for emerging wireless mobile cellular networks, wireless local area networks, personal area networks, and vehicular communications. In the near future, mm-Wave products, systems, theories, and devices will come together to deliver mobile data rates thousands of times faster than today's existing cellular and Wi Fi networks for an example from the era of 3G, 4G towards 5G mobile communication in near future. This paper presents studies on rain attenuation at 6 GHz and 28 GHz, which is widely used for local multipoint distribution service deployment by using the measured and prediction methods for terrestrial microwave links point to point in tropical regions. Besides this, discussion and comparison of five different reduction factor models have been presented. Several models have been proposed by researchers to account for the horizontal variation of rain fall. Five rain attenuation prediction models at tropical region are analyzed. The models are ITU-R model, revised Moupfouma model, revised Silva Mello model, Abdul Rahman model, and Lin model which have been analyzed. The objective of these studies to identify rain attenuation using prediction model for 5G network in tropical region for country like Malaysia. This study been carried out with setting of an experimental test bed. A link of path length 0.2 km was set up in Johor Bahru, Malaysia. Both the transmitter and receiver operate at frequencies of 6 GHz and 28 GHz. A tipping bucket rain rate used, and all the data have been recorded using data logger. At the end of the analysis, it is found that all the five models predict rain attenuation at less than 1 dB and 11 dB for operating microwave frequency at 6 GHz and 28 GHz for 5G Network, This findings will be useful for future 5G network designers to consider the effect of rain impairments especially in tropical region.


Kesavan Ulaganathen, Tharek Bin Abdul Rahman, Md. Rafiqul Islam, and Khaizuran Abdullah, "Rain Attenuation for 5G Network in Tropical Region (Malaysia) for Terrestrial Link," Progress In Electromagnetics Research Letters, Vol. 90, 99-104, 2020.


    1. Crane, R. K., "Prediction of attenuation by rain," IEEE Transactions on Communication, Vol. 28, No. 9, September 1980.

    2. Panagopoulos, D., P. D. M. Arapoglou, and G. C. Panayotis, "Satellite communications at Ku, Ka and V bands: Propagation impairments and mitigation techniques," IEEE Communications Surveys and Tutorials, 2004.

    3. Kanellopoulos, J. D., S. G. Kouleoulas, N. J. Kolliopoulos, C. N. Capsalis, and S. G. Ventouras, "Rain attenuation problems affecting the performance of microwave communication systems," Ann Telecommunication, Vol. 45, No. 7–8, 1990.

    4. Mandeep, J. S. and K. Tanaka, "Effects of atmospheric parameters on satellite link," Int. J. Infrared Milli. Waves, Vol. 28, 789-795, 2007.

    5. Mandeep, J. S., N. Y. Yann, and S. I. S. Hassan, "Case study of rain attenuation at Ka band," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 11–12, 1517-1525, 2008.

    6. Kesavan, U., A. R. Tharek, A. Y. Abdul Rahman, and S. K. Abdul Rahim, "Comparative studies of the rain attenuation predictions for tropical regions," Progress In Electromagnetics Research M, Vol. 18, 17-30, 2011.

    7. Crane, R. K., "Rain attenuation models: Attenuation by clouds and rain," Propagation Handbook for wireless Communication System, 225-280, CRC Press, USA, 2003.

    8. Crane, R. K., Electromagnetic Wave Propagation through Rain, Chapters 1–4, A Wiley-Inter Science Publication, New York, 1996.

    9. Recommendation ITU-R P.838-3 (2005), Specific attenuation model for rain for use in prediction methods, 2005.

    10. Recommendation ITU-R P.530-16 (07/2015), Propagation data and prediction methods required for the design of terrestrial line of sight systems, July 2015.

    11. Moupfouma, F., "Electromagnetic waves attenuation due to rain: A prediction model for terrestrial or L.O.S SHF and EHF radio communication," J. Infrared Milli. Terahz Waves, Vol. 30, 622-632, 2009.

    12. Silva Mello, L. A. R., M. S. Pontes, R. S. L. Souza, and N. A. Garcia, "Prediction of rain attenuation in terrestrial link using full rain rate distribution," Electron Lett., Vol. 43, No. 25, 1442-1443, 2007.

    13. Lin, S. H., "National long term rain statistics and empirical calculation of 11 GHz microwave rain attenuation," The Bell System Technical Journal, Vol. 56, No. 9, 1581-1604, 1977.

    14. Abdulrahman, A. Y., T. A. Rahman, S. K. A. Rahim, and M. R. Ul Islam, "Empirically derived path reduction factor for terrestrial microwave links operating at 15GHz in Peninsula Malaysia," Journal of Electromagnetic Waves and Applications, Vol. 25, No. 1, 23-37, 2011.

    15. Final Reports on Rain Attenuation Studies for Communication Systems Operating in Tropical Regions, Wireless Communication Research Laboratory, Universiti Teknologi Malaysia, October 31, 2000.