Re: [Discuss-gnuradio] Running gr-ieee 802.11 and gr-ieee 802.15.4 under same flowgraph (interference and co-existence)

[Bastian Bloessl]

Hi,
On 07/08/2017 07:11 PM, sumitstop wrote:
> Wao superb! you cleaned it out also. Yes it works. Thanks much.
>
> But did you figure out what was the issue at the first place :)

I'm not sure. Maybe it was related to one of the Packet Pad blocks. 
Since you resampled, you also changed the length of the frame, which 
might have confused the block (the length tag at the start of the frame 
didn't correspond to the length of the frame anymore).

> I have another related question about the wireshark connector in
> transceiver_OQPSK.grc. I see that wireshark connector gets input from two
> different outputs.
>
> One from pdu_out of IEEE802.15.4 MAC and another from rxout of IEEE802.15.4
> OQPSK PHY
>
> When I see the output pcap file i..e sensor.pcap, same packet is logged
> twice. I realized this by observing their sequence number field, which
> repeats two times for every broadcast frame.

Yes, in the loopback configuration it logs all frames twice. Once they 
are sent and once they are received. The setup makes more sense when you 
actually transmit frames over the air. Then you might want to log what 
was sent and what was received.

In your simulations you probably know what you sent and are only 
interested in which frames made it through. In that case, just remove 
the connection from the sender to the Wireshark block.

Best,
Bastian