RFID Tag and Reader Simulation!!

Salam to Every one.

Im doing my final project in RFID. And I have to design a Tag and a Reader at 125KHz. I donot want to do any hardware work. So plz tell me Is there any software in which I can Simulate my Tag and Reader and do there communication?

Wa'salam

well i'm also doing my FYP, title is RFID tag(ISO complaint). the problem which i've conceived yet is tht 1stly thre is a great lack of plateforms (e.g analog front end designing is not possible) so 2 solve it i've decided 2 gve the pseudo command to the tag's backend using parallel port n thn observe it's response

anyways can u plz provide me a little bit more detail abt ur project
my email ID is "shakeel_candid@hotmail.com"