Radio Propagation and Propagation Path-Loss Models

2007 ◽  
pp. 47-84 ◽  
Author(s):  
Vijay K. Garg
Keyword(s):  
Path Loss ◽  
Radio Propagation ◽  
Propagation Path ◽  
Loss Models

Radio propagation path loss models for 5G cellular networks in the 28 GHZ and 38 GHZ millimeter-wave bands

2014 ◽  
Vol 52 (9) ◽  
pp. 78-86 ◽  
Author(s):  
Ahmed Iyanda Sulyman ◽  
Almuthanna T. Nassar ◽  
Mathew K. Samimi ◽  
George R. Maccartney ◽  
Theodore S. Rappaport ◽  
...  
Keyword(s):  
Cellular Networks ◽  
Millimeter Wave ◽  
Path Loss ◽  
Radio Propagation ◽  
Propagation Path ◽  
Loss Models

scholarly journals Directional Radio Propagation Path Loss Models for Millimeter-Wave Wireless Networks in the 28-, 60-, and 73-GHz Bands

2016 ◽  
Vol 15 (10) ◽  
pp. 6939-6947 ◽  
Author(s):  
Ahmed Iyanda Sulyman ◽  
Abdulmalik Alwarafy ◽  
George R. MacCartney ◽  
Theodore S. Rappaport ◽  
Abdulhameed Alsanie
Keyword(s):  
Wireless Networks ◽  
Millimeter Wave ◽  
Path Loss ◽  
Radio Propagation ◽  
Propagation Path ◽  
Loss Models

Challenges in Channel Measurement and Modeling for RF Localization Inside the Human Body

2012 ◽  
Vol 3 (3) ◽  
pp. 18-37 ◽  
Author(s):  
Kaveh Pahlavan ◽  
Yunxing Ye ◽  
Ruijun Fu ◽  
Umair Khan
Keyword(s):  
Human Body ◽  
Path Loss ◽  
Signal Strength ◽  
Radio Propagation ◽  
Time Of Arrival ◽  
Precise Localization ◽  
Channel Measurement ◽  
Modeling Techniques ◽  
Endoscopy Capsule ◽  
Loss Models

In this invited paper, the authors introduce an overview of the fundamentals of radio frequency (RF) channel measurement and modeling techniques needed for localization inside the human body. To address these fundamentals, the authors use capsule endoscopy as an example application. The authors first provide the results of the Cramer Rao Lower Bound (CRLB) for received signal strength (RSS) based endoscopy capsule localization, inside the human body, using existing path-loss models for radio propagation. Then challenges demanding further research are highlighted for attaining more precise localization using the time-of-arrival (TOA) based ranging techniques.

scholarly journals Effects of Solar Radio Emissions on Outdoor Propagation Path Loss Models at 60 GHz Bands for Access/Backhaul Links and D2D Communications

2017 ◽  
Vol 65 (12) ◽  
pp. 6624-6635 ◽  
Author(s):  
Ahmed Iyanda Sulyman ◽  
Hussein Seleem ◽  
Abdulmalik Alwarafy ◽  
Khaled M. Humadi ◽  
Abdulhameed Alsanie
Keyword(s):  
Solar Radio ◽  
Path Loss ◽  
Propagation Path ◽  
60 Ghz ◽  
D2d Communications ◽  
Radio Emissions ◽  
Loss Models ◽  
Solar Radio Emissions ◽  
Backhaul Links

scholarly journals Path-Loss Channel Models for Receiver Spatial Diversity Systems at 2.4 GHz

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Abdulmalik Alwarafy ◽  
Ahmed Iyanda Sulyman ◽  
Abdulhameed Alsanie ◽  
Saleh A. Alshebeili ◽  
Hatim M. Behairy
Keyword(s):  
Communication Systems ◽  
Path Loss ◽  
Spatial Diversity ◽  
Propagation Path ◽  
Real Field ◽  
Channel Models ◽  
Power Combining ◽  
Receiving Antenna ◽  
Diversity Systems ◽  
Loss Models

This article proposes receiver spatial diversity propagation path-loss channel models based on real-field measurement campaigns that were conducted in a line-of-site (LOS) and non-LOS (NLOS) indoor laboratory environment at 2.4 GHz. We apply equal gain power combining (EGC), coherent and noncoherent techniques, on the received signal powers. Our empirical data is used to propose spatial diversity propagation path-loss channel models using the log-distance and the floating intercept path-loss models. The proposed models indicate logarithmic-like reduction in the path-loss values as the number of diversity antennas increases. In the proposed spatial diversity empirical path-loss models, the number of diversity antenna elements is directly accounted for, and it is shown that they can accurately estimate the path-loss for any generalized number of receiving antenna elements for a given measurement setup. In particular, the floating intercept-based diversity path-loss model is vital to the 3GPP and WINNER II standards since they are widely utilized in multi-antenna-based communication systems.

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