CREW offers Open Access

CREW is in continuous Open Access phase to support your experiments free of charge!

Final public event & Globecom tutorial

CREW will present its final results at the Wireless Community event (Leuven, Belgium, 29 October 2015, more info) and organises a hands-on tutorial at Globecom (San Diego, USA, 10 December 2015, more info)

CREW PORTAL: access the CREW facilities

Interested in using the CREW facilities?
[Start here] - [Browse by name] - [Overview images] - [Advanced info] - [WTA GitHub].

First example experiment

The full installation instructions for iris can be found at:

The wiki contains information on how to install iris on both Windows and Linux OS.

As well as information on how to run a radio and on the test bed in general.

In this sample experiment we will run a simple radio and then adapt a component and add a controller, with a view to exploring the basic functionality of both. The steps a researcher should follow to complete the experiment are outlined below.
1. Follow the instructions outlined in the wiki to run radio, OFDMFileReadWrite.XML

2. If this radio is functioning correctly, “radio running” will appear on the command line.

3. To add a controller to the radio, we must first create an event in one of the components to which the controller can subscribe. To do this, open the shaped OFDM modulator and register an event in the constructor function.

4. Once the event is registered we must create a condition that must be satisfied for the event to be activated. To do this, open the “process” function (as this is where all the calculations are carried out) and specify a condition that activates the controller whenever, for example, 100 packets have passed through.

5. Once this has been done the controller can be made. Open the “example” controller; this gives us a template to work with.

6. Within the controller we must do two things, subscribe to the event that has been set up in the component and specify the parameter that we wish to change as well as the value we wish to change it to.

7. To change the parameter, we specify the name of the parameter as well as the component and engine that it is in. These are assigned in the “ProcessEvent” function.

8. The logic that dictates what the parameter is changed to also goes in this function.

9. Recompile all the relevant code, include the controller in the XML file and run the radio as before.
If the radio is running properly, you should see the event being triggered on the command line and the new value of the parameter in question.