You can do PhD level research in any of the topics mentioned above ... but it depends on what you do .... PhD level research needs novel contribution in the filed .. You can take any one of the field mentioned by you start doing literature survey ..... do research and think of the novel contribution which you can make .... implement the ideas and try to create new knowledge base in that area. that will qualify for a PhD work.
Internet of things with WSN ...good topic ... even you may work on security aspects of WSN ..... All the three different filed mentioned by you are very promising for PhD level research... Hope it helps....
You can do PhD level research in any of the topics mentioned above ... but it depends on what you do .... PhD level research needs novel contribution in the filed .. You can take any one of the field mentioned by you start doing literature survey ..... do research and think of the novel contribution which you can make .... implement the ideas and try to create new knowledge base in that area. that will qualify for a PhD work.
Internet of things with WSN ...good topic ... even you may work on security aspects of WSN ..... All the three different filed mentioned by you are very promising for PhD level research... Hope it helps....
I am also confused in selecting PhD topic. Can you suggest me topic(s) about 1) Autonomy of WSN Nodes 2) Floating Sensor Networks, supporting with links if any