Design of FHSS using VHDL

Hello everyone. I am currently working on a project to design a (Frequency Hopping Spread Spectrum) system using VHDL language. I am not sure to use VHDL approach or Schematic one. So which one do you advice for this particular design?? Also, I have adequate knowledge in VHDL, but suppose I don't have any knowledge about the architecture or any other detail of the FPGA chip that I will be working on (which is a Cyclone ii chip ), does that going to make a huge problem for me??