Ask HN: Any ideas for a MS thesis in networking?

Hi, I am starting on my MS thesis this year. I am looking around for some good areas in networking to do my thesis in. I worked in VANETs ( Vehicular Ad-Hoc Networks ) for my BS degree. I didn't find the field that fun though. Can someone suggest some good topics in networking to work in, you know just throw in some ideas, then I will research about them more to see what I like and if it is good for a one-year MS thesis work. Please !