Open Access

Rain Attenuation at 58 GHz: Prediction versus Long-Term Trial Results

EURASIP Journal on Wireless Communications and Networking20072007:046083

DOI: 10.1155/2007/46083

Received: 13 April 2006

Accepted: 17 December 2006

Published: 15 March 2007


Electromagnetic wave propagation research in frequency band 58 GHz was started at TESTCOM in Praha due to lack of experimentally obtained results needed for a realistic calculation of quality and availability of point-to-point fixed systems. Rain attenuation data obtained from a path at 58 GHz with V polarization located in Praha was processed over a 5-year period. Rainfall intensities have been measured by means of a heated siphon rain gauge. In parallel, rainfall intensity data from rain gauge records was statistically processed over the same year periods as the rain attenuation data. Cumulative distributions of rainfall intensities obtained as well as cumulative distributions of rain attenuation obtained are compared with the calculated ones in accordance with relevant ITU-R recommendations. The results obtained can be used as the primary basis for the possible extension of the ITU-R recommendation for calculating rain attenuation distributions up to 60 GHz. The obtained dependence of percentages of time of the average year on the percentages of time of the average worst month is also compared with the relevant ITU-R recommendation. The results obtained are discussed.


Authors’ Affiliations

Technical Centre of Telecommunications and Posts (TESTCOM)


  1. Åsen W, Gibbins CJ: A comparison of rain attenuation and drop size distributions measured in Chilbolton and Singapore. Radio Science 2002.,37(3):
  2. Kato A, Sato K, Fujise M, Kawakami S: Propagation characteristics of 60-GHz millimeter waves for ITS inter-vehicle communications. IEICE Transactions on Communications 2001,E84-B(9):2530-2539.Google Scholar
  3. Timms G, Kvicera V, Grabner M: 60 GHz band propagation experiments on terrestrial paths in Sydney and Praha. Radioengineering 2005,14(4):27-32.Google Scholar
  4. Kvicera V, Grabner M, Fiser O: Results of 2-year concurrent measurements of attenuation at 58 GHz and rain intensities. Proceedings of the 11th Microcoll Conference, September 2003, Budapest, Hungary 77-80.Google Scholar
  5. Rec. ITU-R P.530-11 : Propagation data and prediction methods required for the design of terrestrial line-of-sight systems. ITU-R Recommendations, September 2005.
  6. Rec. ITU-R P.676-6 : Attenuation by atmospheric gases. ITU-R Recommendations, September 2005.
  7. Rec. ITU-R P.837-4 : Characteristics of precipitation for propagation modelling. ITU-R Recommendations, September 2005.
  8. Rec. ITU-R P.841-4 : Conversion of annual statistics to worst-month statistics. ITU-R Recommendations, September 2005.


© V. Kvicera and M. Grabner. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.