Communications Networks - Acronyms

We all know, when studying a particular subject there can be an overwhelming number of acronyms. Sometimes, its expected that you already know the acronyms. One such module I am currently studying is Communication Networks. It contains over 120 acronyms! For something like this, we wish there was a easy to refer to list for what they stand for, so we don't have to keep flipping back pages or using Google to look up the definitions! So I took the time to compile a list not only for myself but for all the students and everyone else out there. You can download a PDF of this or a MS Word document if you wish. If you would like to add more acronyms to this list, please leave them in a comment below.