How long will the status "awaiting decision" after minor revisions last?
To summarize the comments: as long as it takes.  The AE is not solely employed by IEEE, but also has a faculty position (usually) and other obligations.  Although it's frustrating, your manuscript is probably one of many they are responsible for and they have their own stuff going on.  Don't email them. They know they have to make the decision, and your email will not make them do so any faster.  Unfortunately, you will just have to wait it out.