The PIXMA MG3200 series is compatible with a wireless network connection. What you need to have is a wireless router to be able to use this on a wireless network because the printer is not compatible with a ad hoc network connection. What this is is a network connection between your computer and printer without the use of a router.
So that I can provide specific instructions to set this up, please reply with answers to the following:
1. What operating system is installed on your computer?
2. Do you have the original disc that came with the printer?