Hello!!
I had a friend that worked in WiMAX on a project. He done the system in C++.
But if you don't have problems in working with working in MatLab/Simulink, I suggest you to use the existing OFDM (Orthogonal Frequency Division Multiplex) WiMax simulator of Communications Toolbox.
You'll find many information and projects done using google: type WiMax simulink or 802.16e standard.
I recommend you to also search in the File Exchange of Mathworks.
And some good information about the standard in the attached .pdf
If you know someone with a DVB-T with mobile channel implemented... I would appreciate some help
Best regards
mar_deepmode
PS: I see you're new in the forum and don't have points yet.. so if you need it to download the attachment, P.M. me and I'll transfer points to you, ok?