The tone reservation PAPR reduction block used with the DVB-T2
transmitter in gr-dtv may be interesting for you. It uses a ton of
floating point calculations.
https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/lib/dvbt2/dvbt2_paprtr_cc_impl.cc
Even though it uses Volk kernels extensively, it's performance is still
lacking. Right now, it's capable of light PAPR reduction, but for
heavier reduction, it's takes too much CPU and the transmitter flow goes
non real-time.
The target performance would be a clipping value of 2.57 over 50
iterations, which is what is used in the Ofcom mode 2 profile. Current
performance is a clipping value around 2.9 over 20 iterations (on my
workstation).
Ron
On 05/15/2015 03:51 PM, marco Ribero wrote:
Hi,
for my thesis I'm making "porting" of gnuradio blocks over CUDA..
For the moment,I've bring basick blocks,FIR filter,FFT,an FM
receiver(not so good due to latency) and I'm working with ofdm..I
still need to implement IIR filter
Which other blocks do you think that could be nice(useful,get
performance,..) to bring over CUDA?
Thanks for your opinions,
marco
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