Low-complexity geometry-based modeling of diffuse scattering

Modelling diffuse components in geometry-based radio channel models is computationally very complex. It usually requires to add a large number of complex exponentials, which is very time consuming. To overcome this complexity constraint, we propose to use the simulation method from Kaltenberger et a...

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Bibliographic Details
Main Authors: Czink, N, Kaltenberger, F, Zhou, Y, BernadoĢ, L, Zemen, T, Yin, X
Format: Conference Proceeding
Language:English
Subjects:
Computational modeling
Delay effects
Frequency response
Parameter estimation
Radiofrequency identification
Reflection
Roads
Scattering
Solid modeling
Stochastic processes
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Summary:Modelling diffuse components in geometry-based radio channel models is computationally very complex. It usually requires to add a large number of complex exponentials, which is very time consuming. To overcome this complexity constraint, we propose to use the simulation method from Kaltenberger et al.. With this approach, the simulation time becomes independent of the number of multipath components in the channel. We demonstrate the low-complexity approach by modelling the diffuse components of the vehicular radio channel. Our new implementation reduces simulation time by a factor of 30, while keeping the maximum error more than 30 dB below the power of the simulated channels.
ISSN:2164-3342