Ray-optical
wave propagation models provide accurate site specific and easily
reproducible information and cope with effects like shadowing behind
walls, wave guiding in street canyons (or corridors), and are able to
provide additional parameters such as small-scale fading, angles of
departure as well as angles of arrival.
Beyond this, ray-optical models allow the
derivation of further
parameters characterizing the MIMO channel:
directional channel impulse response (CIR)
delay spread
angular profile (at transmitter and receiver)
angular spread (at transmitter and receiver)
Channel Impulse Response (Time and Spatial
Domain)
_____
Delay Spread
_________ __
Angular
Spread
______ ____
Ray Data
For
the purpose of post-processing, WinProp offers the possibility to
write the data corresponding to the calculated propagation paths to
an
ASCII file or a binary file.
The ray data files contain different
outputs, depending on
the propagation scenario and the settings of the user.
The figure illustrates the path data of an urban scenario.
