Ok, I believe I have made up my mind. Since that I'm looking at a packetised
burst transmission system, the best way I have to remove latency from the
system is to flush the buffers in the gnuradio flowgraphs.
I can do this easily on the receiver side: once that I finish receiving my RF
data
Johannes,
Thank you, those were good inputs and I tried running some tests with it. Yes,
I'm using an SDR in that loop (hackrf). I fixed a problem with my code and got
rid of most of the jitter, the latency is now stable around 60-70 milliseconds.
I tried measuring latency of a file source,
Hi Mario,
to sum it up
- your packet duration is:
128bit(in your case also symbols)/50kBaud/s = 2.56ms
- Your "device" sample rate is 50kBaud/s * 20 = 1MSps.
First, do you use any hardware? Or is this just a simulation for now?
If it is a simulation, do you use a throttle block?
In case it is
Hello list!
I'm using named pipes to stream data that I want modulated to gnuradio and I'm
receiving modulated samples back using the same named pipes method. I then
forward the modulated samples to a SDR via some low latency C implementation I
wrote and perform the same operations in reverse
