Re: [Discuss-gnuradio] gr-ieee802-11 wifi signal bitrate

[Bastian Bloessl]

> On 7. May 2017, at 21:27, Thom L <address@hidden> wrote:
> 
> Hi Bastian,
> 
> Le 7 mai 2017 22:10, "Bastian Bloessl" <address@hidden> a écrit :
> 
> The red line is the complex component (which is around 0), while the blue 
> line shows the real part (which jumps between 1 and -1).
> 
> Yes but it jumps at sample rate 20M and not 6M? 

IEEE 802.11a/g always uses 20MHz channels independent from the modulation and 
coding scheme. So it will always be a signal with a 20MHz bandwidth.
If you encode data with BPSK and a coding rate of 1/2, the 20MHz signal will 
carry 6Mbit/s (bits per second, not bandwidth in frequency domain).

> What I would is to see the bit rate 

If you want to visualize the data throughput, I would recommend to parse the 
Wireshark output and calculate a moving average. But you won’t see the 6 
MBit/s. It’s only the PHY throughput, which you could only reach if you sent a 
single frame with infinite size.


Best,
Bastian