Angle and Time of Arrival Characteristics of 3D Air-to-Ground Radio Propagation Environments

Gulfram, Sardar Muhammad and Nawaz, Syed Junaid and Ahmed, Abrar and Patwary, Mohammad (2017) Angle and Time of Arrival Characteristics of 3D Air-to-Ground Radio Propagation Environments. Computer Communications, 112. pp. 22-37. ISSN 0140-3664

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Abstract

A three dimensional (3D) geometric channel model is proposed for ground-to-air (G2A) and air-toground (A2G) communication links. A low-elevated ground station (GS) and a high-elevated air station (AS) are taken at foci points of a virtual bounding ellipsoid corresponded from known knowledge of delay of longest propagation path. The effective region of scatterers around the GS is designed on the basis of this ellipsoid truncated by the average rooftop level (or average height of sea waves) and ground plane. Closedform
expressions for joint and marginal probability density functions (PDFs) of angle of arrival (AoA) observed at AS and GS in correspondence with azimuth and elevation angles are derived. Furthermore, closed-form expressions for density of energy with respect to the delay of arriving multipath waves corresponded from both the elevation and azimuth AoA are derived independently when observed from either end of the communication link. Moreover, effect of different physical parameters of the channel on
distribution of energy in angular and temporal domains is presented. The comparison of analytical results with results of a notable model is also presented. In order to verify the derived analytical expressions, a
comparison of analytical results with the performed simulation results is presented, which shows a good match.

Item Type:	Article
Identification Number:	10.1016/j.comcom.2017.08.011
Dates:	Date Event 1 November 2017 Published 24 August 2017 Published Online 20 August 2017 Accepted
Uncontrolled Keywords:	Channel Modeling, Air-to-Ground Communication, Ellipsoid, Multipath Channels, Scattering.
Subjects:	CAH11 - computing > CAH11-01 - computing > CAH11-01-01 - computer science
Divisions:	Faculty of Computing, Engineering and the Built Environment Faculty of Computing, Engineering and the Built Environment > College of Computing
Depositing User:	Ian Mcdonald
Date Deposited:	01 Sep 2017 09:55
Last Modified:	22 Mar 2023 12:01
URI:	https://www.open-access.bcu.ac.uk/id/eprint/5107

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