Smart Notice Board using Wireless Communication

I have to make a Smart Notice Board in my Communication System Course Project. Idea is to send a text file using some Wireless Communication technique and display it on LCD. I was thinking of applying an idea of Binary Keying.
https://www.st-andrews.ac.uk/~www_pa/Scots_Guide/RadCom/part19/page1.html
Is there any other good way of doing this like FM or AM etc.