Dear experts, kindly, I need to know is it possible to implement the OFDM system using the Altera DE1 FPGA board (EP2C20F484C7) as in the following details;

Tx consists of:

16-QAM mapper
serial to parallel converter (shift register)
multiplier of 256 complex numbers by 256 complex numbers (16 times)
16 block of IFFT operations of length N = 256
parallel to serial converter (shift register)
Peak to average power calculations consists of log10 function

Rx consists of:
serial to parallel converter (shift register)
one block of FFT operations of length N = 256
multiplier of 256 complex numbers by 256 complex numbers (one time)
parallel to serial converter (shift register)
16-QAM de-mapper

and an AWGN channel (Gaussian noise) between the Tx and the Rx

Thank you very much.

How many channels do you want to support in your design? DE1 does not have a very big FPGA,which means you can do this, but with limited number of channels.

I need only one AWGN channel

Have you looked into this site:
http://warp.rice.edu/trac/wiki/OFDMReferenceDesign
They have a full OFDM on a Virtex 4 FPGA.

thanks, am checking it.

you can see the RF front end design of 16 QAM in the link below, i hope it helps
http://blog.ektel.com.np/2012/10/16-qamquadrature-amplitude-modulation-simulation-tutorial/

I need OFDM modulation and demodulation too,I have found only one core in the website,but this core lack of some programmes,do you want it or you can finish it? contact me 3518263636@qq.com