I want to simulate an OFDM link to carry 214 bytes per Ethernet packet & implement it using 2 laptops running GNU & 2 USRPs. Each USRP is a TX & RX .(FULL-DUPLEX)
I calculated all OFDM parameters needed. total BW=200KHz sample Rate=240k symbol time including CP=5ms= 8-burst gsm ( one burst is 0.6ms) T guard= CP =625u T data=4.375ms 2 bits/subcarrier (QPSK) number of bits/ ofdm symbol =440 bits 256 subcarriers per symbol , 224 subcarriers used for data , 2 subcarriers for pilots. FFT size =256. I want to use constitutional coding. I don't know how to start , and what to write in ofdm blocks (what to write in occupied carriers in ofdm transmitter for ex. , .. ) I don't know which blocks can be used & what to write in each field in the blocks. And how to apply constitutional code , do I have to use specific block?! I am new to Ubuntu & GNU. I found in GNU folders , Python and c++ codes , I don't know if I have to change in any of these files? Do I have to read them to understand ? Do I have to write a code to make a TX/RX block ? (As I need full duplex link) Anyone can help me how to start?? As I installed GNU a month ago , I tried to read tutorials and search in doxygen , but till now , I am so confused & don't know how to fill the fields in the blocks!! Thanks :)
_______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
