Hi Sara, Please look at the OFDM TX/RX examples in GNU Radio Companion. It's already there for you. :)
best, aditya On Tue, Mar 18, 2014 at 8:44 PM, Sara Chérif <saracheri...@gmail.com> wrote: > 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 > >
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