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Example Outputs of RadioTracer Simulations |
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The examples in this page show some typical output data
presented by the graphical user interface of RadioTracer.
They are grouped as follows:
The given run times for the coverage maps
represent wall clock time (i.e., real time)
executing RadioTracer on a PentiumII-based Linux platform
with two 450 MHz processors and 128 MBytes of RAM.
This means especially that all I/O-operations are
included in the time measurements
and that there is no pre-processing of input data necessary.
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| Environments | ||
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a simple suburban-like environment with 35 buildings and trees
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a more complex urban environment with 115 buildings
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a complex urban environment with 1635 buildings
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| Multi-Paths | ||
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some ray-path visualization orange line-of-sight, green leaving Tx, violet after diffraction, blue after reflection |
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| Point-to-Point | ||
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power delay profile
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direction-of-arrival (azimuth angles) at receiving point
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direction-of-arrival (elevation angles) at receiving point
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| Point-to-Multi | ||
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power variation along a trajectory (here, the contributions
of each ray-path are added according to their complex field)
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power sum variation along a trajectory (here, the contributions
of each ray-path are added according to their real-valued power)
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fast power variation along a trajectory (this is just the
difference between the power variation and the power sum variation)
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power sum variation coverage map environment: 110 building blocks, height distribution between 10 m and 35 m; antenna: Tx 3 m above building of height 22 m, frequency 900 MHz, isotropic, vertical polarization, Rx 10.000 sample points (approx. 6.8 m spacing) 3 m above ground; interactions: LOS and all ray-paths with one diffraction at a vertical or a horizontal edge, or with one reflection on a vertical wall, and all such ray-paths including additionally a reflection on the ground; full 3D search run time: less than 5 seconds. |
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power sum variation coverage map environment and antenna: same as above; interactions: LOS and all ray-paths with two diffractions at vertical edges, with one diffraction at a horizontal edge, with two reflections on vertical walls, all combinations of one diffraction on a vertical edge and one reflection on a vertical wall or vice versa, and all such ray-paths including additionally a reflection on the ground; 2D search, but 3D path calculation run time: less than 3 and a half minutes. |
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power sum variation coverage map environment and antenna: same as above; interactions: same as previous one; full 3D search run time: less than 33 minutes. |
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power variation coverage map same as previous one, but visualized as the complex sum of all multi-path components |
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| Multi-to-Multi | ||
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multi-line-of-sight coverage map visualizes through the color code how many Tx are visible with direct line-of-sight from each receiver location, the 10.000 receivers are located 1 m above the underlying environment (hence, as well on top of the building blocks) run time: less than 5 seconds |
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Fresnel clearance coverage map visualizes through the color code the percentage of clearance of the 2nd Fresnel zone for each receiver location, the 250.000 receivers are located 1 m above the underlying environment (hence, as well on top of the building blocks), transmitter frequency is set to 20 GHz run time: less than 10 seconds |
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dilution-of-precision coverage map visualizes through the color code the dilution-of-precision value (more precisely, the 2D PDOP) for each receiver location, the 10.000 receivers are located 3 m above ground run time: less than 5 seconds |
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