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International Journal of Antennas and Propagation
Volume 2015 (2015), Article ID 683941, 7 pages
http://dx.doi.org/10.1155/2015/683941
Research Article

Measurements of Building Transmission Loss and Delay Spread at 2.5 GHz

1Institute of Metrology, Quality and Technology (Inmetro), 20261-232 Rio de Janeiro, RJ, Brazil
2Pontifical Catholic University of Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, Brazil

Received 25 April 2015; Accepted 15 June 2015

Academic Editor: Jose-Maria Molina-Garcia-Pardo

Copyright © 2015 L. H. Gonsioroski and L. da Silva Mello. 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.

Abstract

This paper presents the results of measurements of signal transmission loss at 2.5 GHz through 10 urban buildings. This allows the characterization of different types of buildings by effective attenuation constants and consideration of the contribution of the transmitted signal in microcell coverage predictions. Power delay profiles (PDPs) of the received signal were also measured and used to determine the time dispersion parameters of the channel, including the mean excess delay and the rms delay spread.