Thankyou for your guidance it is really helpful...

Why do you need a "communication theory"? Are PhD candidates supposed to generate their own theory and test it?

What does a "communications theory" mean to you?

What is your research question? What did you put in your research proposal?

Why do you not have a _single_ research question?

[https://www.researchgate.net/profile/Henna_Saeed/questions/ View ALL]

Are you struggling? If so, have you done a critical review of the following leads?

http://scholar.google.com/scholar?q=dealing+with+sexual+harassment+in+journalism

and

http://scholar.google.com/scholar?q=handling+sexual+harassment+in+journalism

Let me know if this helps...

Thankyou for your guidance it is really helpful...

You might explore Dougherty et al.'s study (http://www.tandfonline.com/doi/abs/10.1080/03637750802378799#.UykfuIVSud4) on language convergence/meaning divergence. It develops a communication theory that looks at sexual harassment in the workplace. Joann Keyton also does some interesting work on sexual harassment that comes out of the communication discipline. See, for instance, her piece about cultural indicators of sexual harassment (http://www.tandfonline.com/doi/abs/10.1080/10417940109373217#.Uykf8YVSud4).

I hope these are helpful leads!

There are a number of possibilities.  Most communication scholars agree that communication is a discursive phenomenon. As a result, I would encourage you to consider interpretive/critical theories such as Language Convergence/Meaning Divergence (which Jimmy Manning lists in the previous comment), Weick's theory of sensemaking, or narrative theory. I would also encourage you to think beyond just the targets and perpetrators of harassment. Also consider the social environment that normalizes this kind of behavior. You are engaging an important topic and I encourage you to continue with your work.

Have a look also at the references in the papers in Jimmy's comment, and the citations to the good papers you find (Use Scholar again).