Category Archives: Building Modelling

2.5d-building-column

Introducing the Simple OBL Vector Building Data Format

For outdoor scenarios, we often consider each building as the minimal unit, while in indoor scenarios, it can be further decomposed into walls. Despite many existing data formats, e.g. DXF/DWG, Planet, we need something that is simple and does the job pretty well. The XML presents a well-structure document but is considered redundant especially if Continue Reading »

Atmospheric absorption of millimeter waves

Building Significant Factors Affect 5G Propagation Modelling

With 5G networks, there are a few potential challenges for the channel/propagation modelling due to the radiowave behavior and characteristics under 5G frequency bands. Weather The radiowave propagation for millimeter wave for 5G networks is likely to be affected by the weathers. The raining, snowy and windy days may influence the attenuation depending on how Continue Reading »