Re: [Discuss-gnuradio] Which blocks do you like?

[Ron Economos]

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