Indoor Database using Wallman in Winprop
WinProp is a comprehensive and leading simulation tool in the domain of wireless propagation and radio network planning. For a very accurate result, it is very important to create an accurate database that has all the right geometry and material properties. Winprop supports multiple types of databases to describe a geometry:
- Pixel Database – This type of database is typically used for rural/suburban scenarios. Elevations and optionally land usage are stored on a pixel by pixel basis.
- 5D Vector database – This type of database is typically used for urban scenarios. Each building or vegetation object is described by a polygonal ground plane and an individual height above street level using polygonal cylinders. If the urban area is not flat, the topography can be included.
- 3D Vector Database - This type of database is typically used for indoor scenarios or small outdoor scenarios. Each building or other object is described by flat polygons with arbitrary orientations. This allows maximum geometrical freedom.
In this blog, we will focus on a 3D vector database in an indoor environment. We shall demonstrate how to create an indoor database with a simple example of a small house with multiple rooms.
Indoor scenarios often contain areas which are difficult to model like crowds or furniture. These factors influence the wave propagation but not in a way as walls or floors do. Therefore, WallMan provides furniture and people objects. These objects do not interact with propagation rays (they don’t reflect or diffract them) but they add an additional attenuation to them. We shall also see how to add furniture elements in the database. The user interface of wallman is as shown below:
Users can also find the attached indoor database (.idb) file for reference. Users can also view the below video to see step by step instructions to create an accurate database by using functions available in Wallman. For more details and questions please reach out to Altair support.