Selecting IEEE topics for Mphil research on computer network field

I need to select a topic in computer network field, Can you suggest me some good latest topics which I can take for my research, Many papers which I selected, I am not able to download the full paper.

Please if some one can guide me I would really appreciate the help.

Note: I am sorry if question asked here is not up to standard, As I am new here and it is my first question. Please forgive me and help me improve