I am writing a paper in the field of telecommunication. I would distribute my paper into two parts. In the first (more general) part, the system performance for all mobile-phone towers is considered. Results derived from this part are used to study one particular mobile-phone tower. For the first part, I use probability over the entire region. For the second part, I only consider a single tower and revolve my study around it.
Question: Can I have two system models in the research paper with the explanation that I have given above?