I am EE junior @ UIUC, but I feel like learning more closer to CompE. Now I consider what filed should I choose to apply for PhD. I just feel like I do not quite learn enough in EE/CompE/CS. And I have research intership in different areas, one is IoT seruity, one is NLP, and one is distributed system& formal computer theory. But I feel like I may want to learn about computer architecture, but I could finish the high level course related before PhD submission.
Any ideas to me? Thanks for any suggestion here!