help with a project idea good for college(engineering)

would love a good project idea to be done in college level...i believe u understand.....

well i would suggest u do a project on RF id tag. its quite interesting.
if u need more on it i'll give u lots of info on it.
u could also do sumthing on face recognition or voice recognition or finger print recognition.
u could do sumthing with the bluetooth like home automation.
also how does powerline communication sound to u.