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Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal

From: Ernest Szczepaniak
Subject: Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal
Date: Sun, 5 Oct 2014 04:37:07 -0700 (MST)


Ok, got this. After some test's i think that the problem is with my
descrambler (de-interleaver and Viterbi seems to be ok). Currently, im using
Matlab's one provided by comm. toolbox. 

Is it correct to use 127-bit length pre-defined scrambling/descrambling seq?
(i found it in 802.11 standard). Or it sould be only implemented as a shift
register with poly 1+x4+x7?

And last one question:

In any of frames generated by your grc script, there sould be 16x"0" in
SERVICE field (as it a part of PLCP Header) - becouse a typical wlan card is
able to decode it, it is following the 802.11 standard - am I right?


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