Indoor Dominant Path Prediction Model

A fast and highly accurate Prediction Model for Indoor Scenarios

Introduction

  
A detailed introduction to the prediction technique of the Dominant Path Model in general (urban, indoor and rural case) can be found here.

Waveguiding Effects

  
IDP takes waveguiding effects into account. These effects occur - for example - in long, straight corridors. The physical background of this effect is the fact, that the propagating rays are reflected at the walls along the direction of propagation. These effects help to guide the wave through close corridors: Waveguiding.

Multiple Prediction Layers

  
IDP offers two pathfinding algorithms, 2D and 3D. In 2D-mode only one prediction layer is considered, in contrast to the 3D-mode, in which multiple prediction layers are calculated simultanousely. Thus, an accurate prediction for more than only one floor is possible.

Sample Predictions

  
IDP deals also with complex scenarios, as you can see in the following table. The computations were done on an AMD Athlon64 2800+ with 1024 MB RAM. Please click on the images to open a large view of these pictures with an additional legend. More sample predictions can be found here.

Campus of a University in Germany
Convention Centre in Germany
Office Building in India

 

Download a document with a comparison of IDP prediction results to measurements.

Download a brochure with all indoor prediction models.

See a comparison between different indoor prediction models.
Read more about how the Dominant Path Model works.
Read more about the Urban Dominant Path Model.
Read more about the Rural Dominant Path Model.

 

 

 

Animation of a prediction with the Dominant Path Model.

 

Rural Dominant Path Model

 

This is a sub-model for rural scenarios. In addition to the topographical database, clutter- and morpho databases can also be taken into account for the computation.

Urban Dominant Path Model

 

For urban scenarios, this sub-model is used. Not only urban building-databases are considered, but the topographical is also consulted for computation. For the prediction two path-searching algorithms exist: 2D and 3D. Waveguiding effects of street canyons help to achieve most accurate results.

Combined Network Planning

 

This mode is a combination of the two sub-models UDP and IDP. It makes it possible to combine urban predictions with the predictions in buildings considering all types of walls inside the buildings.