VLSI/VHDL OFDM transceiver with MATLAB simulation

Look at my attachment...
Here I want to transmit my voice over UWB and to receive at receiver end.
For that, there will be one ADC to convert my voice to input binary data(not shown above).
Opposite action takes place at the receiver to play my voice on speaker.

Blue blocks should implemented on single FPGA IC using VHDL. White blocks form RF end and should be on discrete components.
I have already prepared FPGA using VHDL and simulated using MATLAB.
Can anybody suggest the design and implementation of RF section on both Transmitter & Receiver ?

for UWB application, i suggest you the Direct Conversion radio architecture, that gives the best quality in terms of noise figure and complexity.
about components, Texas Instruments produce the entire transmit-receive signal chain components.
I advice you to take a look at it.com
good luck.