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].

VESNA spectrum sensing in ISM 2.4GHz

VESNA spectrum sensing in ISM 2.4GHz in the Log-a-tec testbed

The Log-a-tec testbed supports experiments in ISM 868 MHz and 2.4 GHz and in UHF bands. In the ISM remote sensing and transmissions are possible while in the UHF only remote sensing is possible. For transmission on UHF bands, remotely emulating a wireless microphones with ISM 868 transmitters is possible while for anything more advanced, transmitters needs to be taken in the field (JSI has license to transmit in UHF bands).

In the following, we discuss an ISM 2.4 GHz experiment description performed in the Log-a-tec industrial zone cluster depicted in the figure below.

The experiment scenario is as follows. Three VESNA nodes (ids 25, 6, 4) from the Log-a-tec testbed are configured to perform spectrum sensing in the 2.4 GHz spectrum band. Four VESNA nodes (ids 2, 17, 24, 26) from the same testbed are configured to perform transmissions, each on a 200KHz channel in the 2.4 GHz band. The transmissions are performed in channels 50, 105, 155 and 205 and they start 5 seconds after the sensors start sensing the environment and end 5 seconds before the sensors stop sensing.

The portal facilitating the experiment configuration is presented in the figure below while the experiment description in CREW common data format are available in XML and JSON encoding below.


Experiment description in common data format: JSON | XML

VESNA_SS_24GHz.json13.29 KB
VESNA_SS_24GHz.zip2.34 KB
IndustrialZoneCluster.png308.52 KB
VESNA_SS_24GHz.png284.29 KB