I am writing my PhD research proposal. In "Research Aims / Questions" section, I have proposed two distinct research questions which are from the same sub-field but divert from each other a little bit.
Here is an example in my discipline, Computer Science, and subfield, Communications. The first research question involves analysis of router throughput with some specific algorithm. The second question involves a compression mechanism a router, and the compression mechanism is not related to its throughput.
Question: Can I be successful having two not-closely-related research questions? or should I write two separate research proposals?
Any help would be appreciated.