Dear All, Here's a little update:
Changing GR_FIXED_BUFFER_SIZE from 32k to 128k solved the problem, but at the cost of quite a slowdown. The problem was, in hindsight, quite obvious. Not a bug, most definitely. My OFDM implementation just needed way too much memory. Thanks, and happy hacking to all. best, aditya On Wed, Jan 29, 2014 at 12:19 PM, Aditya Dhananjay <adi...@cs.nyu.edu>wrote: > Dear All, > > I am running OFDM TX-RX in GRC. The parameters used are very similar to > those in the TXRX example, with a few differences: > > - FFT size changed to 1024 > - Pilots aren't placed on fixed subcarriers on every symbol index. Every > third symbol index has pilots. > - I've updated sync_word1, sync_word2, occupied_carriers, pilot_carriers, > and pilot_symbols to reflect these changes. I've pasted these values at the > end of the email for your reference. > > When I run the flowgraph, it crashed with: > > thread[thread-per-block[14]: <block ofdm_carrier_allocator_cvc (13)>]: > Buffer too small for min_noutput_items > > The value of best_n is 4, and the value of min_noutput_items is 6. > > I had also experimented with a similar pilot placement scheme, but with > fft_len = 64. That works fine with no issues. > > Any pointers on how to fix this problem? Thanks! > > best, > aditya > > PARAMETERS USED: > > sync_word1: > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, > 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, > 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, > 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, > 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., > -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., > -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., > 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0. > > sync_word2: > [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, > -1, 1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, -1, > 1, -1, -1, -1, -1, 1, -1, 1, 1, 1, -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, 1, -1, > -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, -1, 1, > -1, 1, 1, 1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, 1, > -1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 1, -1, 1, 1, -1, 1, -1, > 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, -1, > -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, 1, 1, 1, 1, 1, 1, -1, > -1, 1, -1, -1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, 1, > 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, -1, 1, > 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, 1, 1, -1, 1, -1, 1, -1, 1, -1, -1, -1, > -1, 1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, 1, > -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, 1, 1, -1, 1, -1, > 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, -1, 1, 1, 1, -1, 1, -1, -1, -1, 1, > -1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, -1, 1, 1, -1, 1, 1, > 1, -1, 1, -1, -1, 1, -1, -1, 1, -1, -1, -1, 1, 1, -1, 1, -1, 1, 1, -1, -1, > -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, -1, -1, -1, 1, 1, -1, -1, -1, -1, 1, -1, > -1, -1, -1, -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, -1, -1, > 1, 1, 1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, > -1, -1, -1, -1, 1, 1, -1, -1, -1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, -1, 1, > -1, -1, 1, 1, 1, 1, 0, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, -1, 1, > 1, -1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1, -1, -1, -1, -1, -1, -1, 1, > -1, 1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 1, > -1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1, -1, -1, -1, -1, 1, 1, -1, -1, > 1, 1, 1, -1, 1, -1, -1, 1, 1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, 1, -1, > 1, 1, 1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, 1, 1, > -1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, > -1, -1, -1, 1, 1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, > 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, > -1, 1, 1, 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, > -1, -1, -1, -1, 1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 1, > -1, -1, 1, -1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, > -1, 1, 1, -1, 1, -1, -1, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, 1, -1, > 1, -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1, -1, > -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, -1, > -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, -1, 1, -1, 1, -1, > 1, 1, 1, -1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, > -1, -1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, -1, 1, > 1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, 1, > -1, 1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] > > > occupied_carriers: > ((-413, -412, -411, -409, -408, -407, -405, -404, -403, -401, -400, -399, > -397, -396, -395, -393, -392, -391, -389, -388, -387, -385, -384, -383, > -381, -380, -379, -377, -376, -375, -373, -372, -371, -369, -368, -367, > -365, -364, -363, -361, -360, -359, -357, -356, -355, -353, -352, -351, > -349, -348, -347, -345, -344, -343, -341, -340, -339, -337, -336, -335, > -333, -332, -331, -329, -328, -327, -325, -324, -323, -321, -320, -319, > -317, -316, -315, -313, -312, -311, -309, -308, -307, -305, -304, -303, > -301, -300, -299, -297, -296, -295, -293, -292, -291, -289, -288, -287, > -285, -284, -283, -281, -280, -279, -277, -276, -275, -273, -272, -271, > -269, -268, -267, -265, -264, -263, -261, -260, -259, -257, -256, -255, > -253, -252, -251, -249, -248, -247, -245, -244, -243, -241, -240, -239, > -237, -236, -235, -233, -232, -231, -229, -228, -227, -225, -224, -223, > -221, -220, -219, -217, -216, -215, -213, -212, -211, -209, -208, -207, > -205, -204, -203, -201, -200, -199, -197, -196, -195, -193, -192, -191, > -189, -188, -187, -185, -184, -183, -181, -180, -179, -177, -176, -175, > -173, -172, -171, -169, -168, -167, -165, -164, -163, -161, -160, -159, > -157, -156, -155, -153, -152, -151, -149, -148, -147, -145, -144, -143, > -141, -140, -139, -137, -136, -135, -133, -132, -131, -129, -128, -127, > -125, -124, -123, -121, -120, -119, -117, -116, -115, -113, -112, -111, > -109, -108, -107, -105, -104, -103, -101, -100, -99, -97, -96, -95, -93, > -92, -91, -89, -88, -87, -85, -84, -83, -81, -80, -79, -77, -76, -75, -73, > -72, -71, -69, -68, -67, -65, -64, -63, -61, -60, -59, -57, -56, -55, -53, > -52, -51, -49, -48, -47, -45, -44, -43, -41, -40, -39, -37, -36, -35, -33, > -32, -31, -29, -28, -27, -25, -24, -23, -21, -20, -19, -17, -16, -15, -13, > -12, -11, -9, -8, -7, -5, -4, -3, -1, 1, 3, 4, 5, 7, 8, 9, 11, 12, 13, 15, > 16, 17, 19, 20, 21, 23, 24, 25, 27, 28, 29, 31, 32, 33, 35, 36, 37, 39, 40, > 41, 43, 44, 45, 47, 48, 49, 51, 52, 53, 55, 56, 57, 59, 60, 61, 63, 64, 65, > 67, 68, 69, 71, 72, 73, 75, 76, 77, 79, 80, 81, 83, 84, 85, 87, 88, 89, 91, > 92, 93, 95, 96, 97, 99, 100, 101, 103, 104, 105, 107, 108, 109, 111, 112, > 113, 115, 116, 117, 119, 120, 121, 123, 124, 125, 127, 128, 129, 131, 132, > 133, 135, 136, 137, 139, 140, 141, 143, 144, 145, 147, 148, 149, 151, 152, > 153, 155, 156, 157, 159, 160, 161, 163, 164, 165, 167, 168, 169, 171, 172, > 173, 175, 176, 177, 179, 180, 181, 183, 184, 185, 187, 188, 189, 191, 192, > 193, 195, 196, 197, 199, 200, 201, 203, 204, 205, 207, 208, 209, 211, 212, > 213, 215, 216, 217, 219, 220, 221, 223, 224, 225, 227, 228, 229, 231, 232, > 233, 235, 236, 237, 239, 240, 241, 243, 244, 245, 247, 248, 249, 251, 252, > 253, 255, 256, 257, 259, 260, 261, 263, 264, 265, 267, 268, 269, 271, 272, > 273, 275, 276, 277, 279, 280, 281, 283, 284, 285, 287, 288, 289, 291, 292, > 293, 295, 296, 297, 299, 300, 301, 303, 304, 305, 307, 308, 309, 311, 312, > 313, 315, 316, 317, 319, 320, 321, 323, 324, 325, 327, 328, 329, 331, 332, > 333, 335, 336, 337, 339, 340, 341, 343, 344, 345, 347, 348, 349, 351, 352, > 353, 355, 356, 357, 359, 360, 361, 363, 364, 365, 367, 368, 369, 371, 372, > 373, 375, 376, 377, 379, 380, 381, 383, 384, 385, 387, 388, 389, 391, 392, > 393, 395, 396, 397, 399, 400, 401, 403, 404, 405, 407, 408, 409, 411, 412, > 413),(range(-414,0)+range(1,415)),(range(-414,0)+range(1,415)),) > > > pilot_carriers: > ((-414, -410, -406, -402, -398, -394, -390, -386, -382, -378, -374, -370, > -366, -362, -358, -354, -350, -346, -342, -338, -334, -330, -326, -322, > -318, -314, -310, -306, -302, -298, -294, -290, -286, -282, -278, -274, > -270, -266, -262, -258, -254, -250, -246, -242, -238, -234, -230, -226, > -222, -218, -214, -210, -206, -202, -198, -194, -190, -186, -182, -178, > -174, -170, -166, -162, -158, -154, -150, -146, -142, -138, -134, -130, > -126, -122, -118, -114, -110, -106, -102, -98, -94, -90, -86, -82, -78, > -74, -70, -66, -62, -58, -54, -50, -46, -42, -38, -34, -30, -26, -22, -18, > -14, -10, -6, -2, 2, 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, > 62, 66, 70, 74, 78, 82, 86, 90, 94, 98, 102, 106, 110, 114, 118, 122, 126, > 130, 134, 138, 142, 146, 150, 154, 158, 162, 166, 170, 174, 178, 182, 186, > 190, 194, 198, 202, 206, 210, 214, 218, 222, 226, 230, 234, 238, 242, 246, > 250, 254, 258, 262, 266, 270, 274, 278, 282, 286, 290, 294, 298, 302, 306, > 310, 314, 318, 322, 326, 330, 334, 338, 342, 346, 350, 354, 358, 362, 366, > 370, 374, 378, 382, 386, 390, 394, 398, 402, 406, 410, 414), (), (),) > > pilot_symbols: > ((0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, > -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, > -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, > 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, > 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, > -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, > -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, > 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, > 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, > -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, > -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, > 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, > 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, > -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, > -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, > 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, > 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, > -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, > -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, > 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, > 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, > -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, > -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, > 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, > 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, > -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, > -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, > 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, > 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, > -0.7-0.7j, 0.7-0.7j, 0.7+0.7j, -0.7+0.7j, -0.7-0.7j, 0.7-0.7j),(),(),) >
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