Re: [Discuss-gnuradio] tx_ofdm

2014-05-22 Thread eontool
IIRC, the tx and rx files are just a very general implementation of the OFDM model. Here's my understanding: - Packet length refers to the data necessary to produce n symbols (48 data carriers, 2 symbols = 96). - The number of total carriers in the systems equals the FFT length. In this case, 48

[Discuss-gnuradio] tx_ofdm.grc & rx_ofdm.grc output data

2013-10-23 Thread eontool
Has anyone tested successfully these two files combined? The input data or vector source is an array of 96 elements [0-95] but I'm getting a strange output at the end. The 96 + 4 elements from the crc, then another 100 values (200 total), then the sequence repeats. I tried using the OFDM transm

Re: [Discuss-gnuradio] tx_ofdm.grc & rx_ofdm.grc output data

2013-10-24 Thread eontool
Hi Martin. I used the default settings for the parameters. The data I'm seeing is after de CRC. Here's my payload output at the HPD: -- Tag Debug: HPD / Payload Input Stream: 00 Offset: 1547 Source: n/a Key: frame_len V

Re: [Discuss-gnuradio] tx_ofdm.grc & rx_ofdm.grc output data

2013-10-24 Thread eontool
Hello again. OK, so now after changing a few things it finally works, I get the expected data correctly at the output. Apparently it works automatically for BPSK Modulation on both header and payload because the arguments on these variables are equal to "1". But, in order to work for QPSK o QAM y