Environmental modeling errors have significant influence on the accuracy of ray tracing (RT) based channel modeling method. The aim of this paper is to provide reference for determining the appropriate accuracy of indoor databases to achieve prediction results within tolerance. Therefore in this paper, we discuss the influence of modeling errors on the RT-based channel modeling accuracy for millimeter-wave frequency bands. Different from the previous work, our discussion mainly foucus on the indoor environments and try to analyze the relationship between the channel parameters including received power, delay spread (DS), angle spreads (AS) and the types of scatterers. Simulation results show the RT results are more sensitive to the geometric errors caused by the room boundary in the line-of-sight (LOS) case while indoor scatterers have a greater impact in the non-LOS (NLOS) case. Additionally, AS is more sensitive to geometric errors of environment than DS. These results have guiding significance for channel modeling and simulation work using RT.
Effects of Inaccuracies of Indoor Environment Databases on Ray Tracing Results
2021-04-01
3090271 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Inaccuracies in the CRASH3 Program
Kraftfahrwesen | 1985
|Inaccuracies in the CRASHS Program
SAE Technical Papers | 1985
|A ray tracing approach to channel modelling for the indoor environment
Kraftfahrwesen | 1993
|Managing Gradient Inaccuracies while Enhancing Optimal Shape Design Methods
British Library Conference Proceedings | 2013
|