Impact Factor mainly calculated based on Journal citation.citation means all the information identifying a publication with quality and professional.
In research area, more Universities must need to publish the papers on impact factor Journals , and also ask them PhD students to published.
In Impact factor journal changing based on selected domain.
For ex.
If you choose networking Domain means 1st preferred IEEE,
If you choose image processing Domain means 1st preferred springer,
So please choose your Journal and published paper....
Please give more comments for Pre-Phd scholars..