Hi, much appreciate for your reply Bastian. I have succefully found your frame.bin signal, forwarded by my USRP (generated in MATLAB, received with Windows Network Monitor and wlan card).
You were right. It is Data frame, 232323:232323 Source MAC and FFFFFF:FFFFFF Destination MAC. Still dunno what's wrong. Could you please check my methodology?? 1st OFDM symbol is carrying a SIGNAL field - it is decoded correctly (i checked all rates with your grc wlan script) - no problem here. 2nd OFDM symbol is carrying Data. Assuming BPSK 1/2, it should carry 16 bit SERVICE field, and 8 bits from FRAME CONTROL field (together - 24 uncoded bits). And my algorythm goes as follows (for 2nd OFDM symbol): - OFDM demodulation (to get 48 complex data points) - BPSK demodulation (to get 48 coded bits) - de-interleaving (1st and 2nd permutation) - Viterbi decoding ([133 171 poly] to get 24 uncoded bits) - descrambling and if its correct way, i should get 24 bits of data (16x0 and 8 bits depending on FRAME CONTROL paylaod) right? Best, Ernest -- View this message in context: http://gnuradio.4.n7.nabble.com/GRC-3-6-802-11-a-g-test-signal-tp50585p50621.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
