Effects of antenna polarization on power and RMS delay spread in LOS/OOS indoor radio channel

Liu, Z.-Y.; Guo, Lixin; Li, C.-L.

doi:10.1109/ursigass.2014.6929278

Cited by 4 publications

(7 citation statements)

References 15 publications

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“…As we can see from the table, the large difference between all combinations of the dipole antenna is 27.81 dBm between the combinations Tx (0-90)/Rx (0-90) (i.e., HL/HL) and Tx (0-90)/Rx (0-0) (i.e., HL/VL). In [8], the power difference between the same polarization (VL/VL) and different polarization (VL/HL) combinations is greater than 30 dBm in the LOS scenario. So, the value that we found is not surprising.…”

Section: For the Los Casementioning

confidence: 99%

“…An omnidirectional antenna is used by the transmitter and four antenna types (omnidirectional antenna and threedirectional antennas with wide, medium, and narrow beam width) are used by the receiver in a fixed manner without orientation of the antennas. The work [8] introduces results of computer simulation based on a three-dimensional (3D) RT method for various directional polarized antennas, where the effects of antenna polarization on power and RMS delay spread are investigated in line-of-sight (LOS) and out-ofsight (OOS) indoor channel. The carrier frequency of the two antennas is 2.4 GHz.…”

Section: International Journal Of Antennas and Propagationmentioning

confidence: 99%

“…The high value of the difference between the maximum and minimum RMS of the dipole antenna and that of 3D cubic antenna is 25.06 ns and 6.48 ns, respectively. In [8], the authors found that the difference between the RMS of the Tx and Rx combinations using the dipole antenna is about 15 ns. So, the value that we found is a little big but they are both higher (due to the frequency and environment used).…”

Section: For the Los Casementioning

confidence: 99%

“…So, the difference found in the case of using the dipole antenna is much greater than the case when using the 3D cubic antenna. In [8], the authors did not treat the case when the Tx and Rx are in different rooms, that is, the NLOS scenario. So, we cannot compare the results.…”

Section: For the Nlos Casementioning

confidence: 99%

“…The big difference of the between all the combinations of the dipole antenna that we found is 27.97 dBm. In [8] the authors found that the difference between the of Tx and Rx combinations using the dipole antenna is greater than 30 dBm in the OLOS scenario. So, the great value that we found is not surprising.…”

Section: For the Olos Casementioning

confidence: 99%

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

Bou-El-Harmel

Benbassou

Belkadid

et al. 2017

International Journal of Antennas and Propagation

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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.

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Section: For the Los Casementioning

confidence: 99%

Section: International Journal Of Antennas and Propagationmentioning

confidence: 99%

Section: For the Los Casementioning

confidence: 99%

Section: For the Nlos Casementioning

confidence: 99%

Section: For the Olos Casementioning

confidence: 99%

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