Urban Dominant Path Prediction Model

A fast and highly accurate Prediction Model for Urban 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

  
UDP takes waveguiding effects into account. These effects occur - for example - in long straight street canyons. 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 streets: Waveguiding.

Topography

  

UDP also deals with terrain databases, that means that the topography in the predicion area is taken into account for the computation. Especially in hilly terrain the results would not be correct if the topography was not considered.

Combined Network Planning

 
The CNP mode makes it possible to combine urban and indoor predictions. In the urban region the prediction is computed with the Urban Dominant Path Model (UDP), its settings and the resolution selected for the urban domain. For the prediction in the indoor area the Indoor Dominant Path Model (IDP) with a finer resolution is used. Thus, the resolution is automatically adapted to urban or indoor needs. The settings of the Dominant Path Model, such as path loss exponents and interaction losses, are also adapted to the current situation.

Sample Predictions

  
UDP can also handle very large scenarios as shown in the following table. The computations were obtained on an AMD Athlon64 2800+ with 1024 MB RAM. More sample predictions with descriptions in detail can be found here.

Complete area of Hong Kong (China)
City of Shenzhen (China)
City of Stuttgart (Germany)

 

Download a document with a comparison of UDP predictions to measurements.

Download a brochure with all urban prediction models.

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

 

 

 

Settings for the Dominant Path Model (click here to enlarge).

 

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.

 Indoor Dominant Path Model

 

Using indoor scenarios, this sub-model is considered. Two prediction-modes are available, 2D and a full 3D mode. Transmissions through walls are also taken into account, as well as special waveguiding effects which lead to very 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.