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International Journal of Antennas and Propagation
Volume 2017, Article ID 2686123, 13 pages
Research Article

Effect of Quasi-Isotropic Antenna Orientation on Indoor Multipath Propagation Characteristics in RSN Applications

Laboratory of Transmission and Processing Information Eq. EMC/Telecom, High School of Technology, Sidi Mohamed Ben Abdullah University, Road IMOUZZER, 2427 Fez, Morocco

Correspondence should be addressed to Abdelhamid Bou-El-Harmel;

Received 16 January 2017; Revised 2 April 2017; Accepted 2 May 2017; Published 29 May 2017

Academic Editor: María Elena de Cos Gómez

Copyright © 2017 Abdelhamid Bou-El-Harmel et al. 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.


In the RFID sensor networks (RSN), the orientations of the antennas used in the network nodes have a significant influence on the propagation characteristics. In this article, we investigated the effects of the two antennas’ orientation of different radiation and polarization on the multipath propagation characteristics. This study is evaluated in a typical indoor environment by computer simulations based on the three-dimensional (3D) ray-tracing method. This method is based on geometric optics and uniform diffraction theory and also it offers significant advantages in terms of accurate and comprehensive prediction of propagation characterization. The simulations have been performed at frequency 915 MHz and the propagation characteristics are compared in terms of received power level () and Root-Mean-Square (RMS) delay spread for a quasi-isotropic 3D cubic antenna with circular polarization and for an omnidirectional dipole with linear polarization in the LOS, NLOS, and OLOS scenarios.