QuaDRiGa, short for QUAsi Deterministic RadIo channel GenerAtor, is used for generating realistic radio channel impulse responses for system-level simulations of mobile radio networks. These simulations are used to determine the performance of new technologies in order to provide an objective indicator for the standardization process in bodies like the third generation partnership program 3GPP.
QuaDRiGa was developed at Fraunhofer HHI to enable the modeling of MIMO radio channels for specific network configurations, such as indoor, satellite or heterogeneous configurations. Besides being a fully-fledged three dimensional geometry-based stochastic channel model, QuaDRiGa contains a collection of features created in SCM(e) and WINNER channel models along with novel modeling approaches which provide features to enable quasi-deterministic multi-link tracking of users (receiver) movements in changing environments.
The new version (v2.0) of QuaDRiGa contains a couple of new features and is furthermore calibrated against 3GPP channel models like 3GPP-3D and the latest New Radio channel model. The supported (standardized) channel models are:
Added features in version 2.0:
Features of version 1.4:
|Download||Version Nr||Release Date||Notes|
|1.4.1||22.03.2016||Supports 3GPP-3D (3GPP TR 36.873) simulations and initial mm-wave channels up to 80 GHz.|
|2.0.0||01.08.2017||Supports 3GPP 38.901 channel model (including spatial consistency and multi-frequency simulations) and final mmMAGIC channel model.|
The technical documentation gives a detailed overview of the QuaDRiGa channel model, its implementation details and tutorials providing examples for usage. The model has been evolved from the WINNER channel model described in WINNER II deliverable D1.1.2 v.1.2. This document covers only the model itself. Measurement campaigns covering the extraction of suitable parameters can be found in the WINNER documentation. Furthermore, the MIMOSA project covers the model development and parameter extraction for land-mobile satellite channels.Technical Documentation
The channel model is parametrized for various applications and scenarios, e.g. urban macrocellular (UMa) or urban microcellular (UMi). The model parameters for these scenarios are either based on measurement campaigns or on standardized models. While a multitude of common configuration files comes with the QuaDRiGa implementation, additional parameterizations based on single measurement campaigns are available here.Configuration files
The channel model itself can be sited like this:
S. Jaeckel, L. Raschkowski, K. Börner and L. Thiele, "QuaDRiGa: A 3-D Multicell Channel Model with Time Evolution for Enabling Virtual Field Trials", IEEE Transactions on Antennas Propagation, 2014.Please use the implementation version as a footnote for easier bug tracking and to enable others to reproduce your results:
The simulation results were generated using QuaDRiGa Version 1.2.3-307.
The system level innovations group may provide solutions for including QuaDRiGa to your system level simulator. Please contact Lars Thiele for further information.
The system level innovations group may offer computing time for channel trace generation. If you are interested in this service, please contact Lars Thiele.
A typical scenario consisting of 57 macro base station with a regular hexagonal grid and 20 mobile terminals being observed for 200 ms and 500 realizations take about 611 GB of hard disk space with a 4x2 MIMO configuration.
Nothing! QuaDRiGa is an open source library published under GNU Lesser General Public License.
Currently we have no scheduled seminars introducing QuaDRiGa. Please contact Lars Thiele if you need further information on seminars.
Principally yes. Although modeling accuracy is limited by errors caused by the plane wave propagation assumptions and the currently employed scatterer model. Future extensions of QuaDRi- Ga are planned for more accurate modeling of massive MIMO propagation.
Please use the contact form on the website if you have any questions.
QuaDRiGa has already been used for scientific publications internally as well as externally. See the QuaDRiGa publication for more information.
The QuaDRiGa channel model largely extends the WINNER model to support several new features that were originally not included. These are: Time evolution, scenario transitions, variable speed for user mobile terminals, common framework for NLOS and LOS simulations, geometric polarization, improved method for calculating correlated propagation maps, new functions for modifying antenna patterns and a new MATLAB© implementation. For more detailed information refer to the QuaDRiGa documentation.
QuaDRiGa is continuously developed. Therefore, updates will be releases and we would like to let you know of future updates.