You don't need a PhD (or in fact any degree or affiliation). This is particularly true for conferences and journals that are "double blind" e.g. reviewers don't know the affiliations or names of the writers.
Submission is trivial: most have a webpage (with a deadline and submission requirements - e.g. double spaced, single column, no more than 12 pages), that you just put your document and details into.
That being said, most research areas are such that it's really quite difficult to position your work in such a way that it will get accepted: you need to know prior art well enough (and show this), but you also need to know who's work is actually any good (not easy) and who on the PC you need to reference, etc.
Submission is trivial: most have a webpage (with a deadline and submission requirements - e.g. double spaced, single column, no more than 12 pages), that you just put your document and details into.
That being said, most research areas are such that it's really quite difficult to position your work in such a way that it will get accepted: you need to know prior art well enough (and show this), but you also need to know who's work is actually any good (not easy) and who on the PC you need to reference, etc.