You can ask for a visitor's visa to the US at your US consulate. Because you are married to a green card holder, it is very likely they will deny it because they will fear you will not leave the US once you get here. The alternative is for your wife to start the green card process for you. She can file the I-130 petition with DHS now. Under current processing times it will take about three years until you can enter as a green card holder. If your wife becomes a USC, then you can upgrade your petition and immediately move through the green card process.
Answered on Jul 15th, 2011 at 4:31 PM