I am currently trying to transmit data from one SDR which is HACK RF One to another using OFDM in GNURadio. I got this to work with the default fft length of 64.
Now I am trying to do this with 1024 fft length but I am getting the following error.
thread[thread-per-block: <block ofdm_cyclic_prefixer(14)>]: Buffer too small for min_noutput_items
Anyone know how to fix this?
I have played around with different lengths of the cyclic prefix but to no avail.
Also, I have seen a post from 2014, where it is suggested to increase the GR_FIXED_BUFFER_SIZE from 32k to 128k. I have installed GNURadio using PyBombs. I would like to know the process of doing this as well.