As a registered participant to this event you will be provided credentials to use the visitors wireless network. Once your computer is configured, you will be able to access the public Internet for the duration of the whole event. Details on how to configure your device will be provided on site at the registration desk.
In addition, the eduroam wireless network will be available for all participants. This is a convenient mechanism to automatically and securily get connected to the wireless network of academic and research institutions around the world.
This map shows the organisations have enabled access to eduroam members. If that is the case of your home institution, you need to configure your device following the instructions specific to your institution, which often involves installing some public key certificates.
You may want to read this page to get you started and your local support may help you with this one-time process.