Hi,
On 07/17/2017 11:06 AM, Mériem Saïdi wrote:
Hi,
I use 802.11 IEEE standards to code and decode a PMT message and i would
like to calculate the BER between the source of information I want to
encode and the same source after decoding. (see attached screen-shots below)
Except that I have all time a null BER ! however the "channel model"
block introduce noise so the BER can't be null!
I've tried with a Random Source instead of Message Strobe but always the
same result !
I don't know if the problem comes from one of the encoding/decoding
flowgraph, or from the position of outputs i took to calculate BER ??!!
any ideas please ?!
If you want to see errors, you have to change the SNR (lower it) or
switch to higher modulation and coding schemes.
Apart from that, it is currently not out of the box possible to measure
the BER, just the FER. An example simulation can be found in the
simulations/awgn folder of the project. It produces this plot
https://github.com/bastibl/gr-ieee802-11/blob/next/simulations/awgn/pdr.pdf
Best,
Bastian
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