update lib files
This commit is contained in:
Bastian Bloessl
+19
-149
@@ -14,166 +14,25 @@
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <gnuradio/ieee802_11/ofdm_decode_mac.h>
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#include <ieee802-11/ofdm_decode_mac.h>
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#include "ofdm_utils.h"
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#include <boost/crc.hpp>
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#include <gnuradio/io_signature.h>
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#include <itpp/itcomm.h>
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#include <iostream>
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#include <iomanip>
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using namespace gr::ieee802_11;
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using namespace itpp;
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enum ENCODING {
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BPSK_1_2,
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BPSK_3_4,
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QPSK_1_2,
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QPSK_3_4,
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QAM16_1_2,
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QAM16_3_4,
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QAM64_2_3,
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QAM64_3_4,
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};
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/**
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* OFDM parameters
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*/
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class GR_IEEE802_11_API ofdm_param {
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public:
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ofdm_param(ENCODING e) {
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encoding = e;
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switch(e) {
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case BPSK_1_2:
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n_bpsc = 1;
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n_cbps = 48;
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n_dbps = 24;
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rate_field = 0x0D; // 0b00001101
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break;
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case BPSK_3_4:
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n_bpsc = 1;
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n_cbps = 48;
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n_dbps = 36;
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rate_field = 0x0F; // 0b00001111
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break;
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case QPSK_1_2:
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n_bpsc = 2;
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n_cbps = 96;
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n_dbps = 48;
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rate_field = 0x05; // 0b00000101
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break;
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case QPSK_3_4:
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n_bpsc = 2;
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n_cbps = 96;
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n_dbps = 72;
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rate_field = 0x07; // 0b00000111
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break;
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case QAM16_1_2:
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n_bpsc = 4;
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n_cbps = 192;
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n_dbps = 96;
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rate_field = 0x09; // 0b00001001
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break;
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case QAM16_3_4:
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n_bpsc = 4;
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n_cbps = 192;
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n_dbps = 144;
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rate_field = 0x0B; // 0b00001011
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break;
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case QAM64_2_3:
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n_bpsc = 6;
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n_cbps = 288;
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n_dbps = 192;
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rate_field = 0x01; // 0b00000001
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break;
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case QAM64_3_4:
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n_bpsc = 6;
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n_cbps = 288;
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n_dbps = 216;
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rate_field = 0x03; // 0b00000011
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break;
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defaut:
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assert(false);
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break;
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}
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}
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void print_out() {
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std::cout << "OFDM Parameters:" << std::endl;
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std::cout << "endcoding :" << encoding << std::endl;
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std::cout << "rate_field :" << (int)rate_field << std::endl;
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std::cout << "n_bpsc :" << n_bpsc << std::endl;
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std::cout << "n_cbps :" << n_cbps << std::endl;
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std::cout << "n_dbps :" << n_dbps << std::endl;
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}
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// data rate
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ENCODING encoding;
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// rate field of the SIGNAL header
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char rate_field;
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// number of coded bits per sub carrier
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int n_bpsc;
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// number of coded bits per OFDM symbol
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int n_cbps;
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// number of data bits per OFDM symbol
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int n_dbps;
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};
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/**
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* packet specific parameters
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*/
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class tx_param {
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public:
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tx_param(ofdm_param &ofdm, int psdu_length) {
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psdu_size = psdu_length;
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// number of symbols (17-11)
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n_sym = (int) ceil((16 + 8 * psdu_size + 6) / (double) ofdm.n_dbps);
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// number of bits of the data field (17-12)
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n_data = n_sym * ofdm.n_dbps;
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// number of padding bits (17-13)
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n_pad = n_data - (16 + 8 * psdu_size + 6);
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n_encoded_bits = n_sym * ofdm.n_cbps;
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}
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// PSDU size in bytes
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int psdu_size;
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// number of OFDM symbols (17-11)
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int n_sym;
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// number of data bits in the DATA field, including service and padding (17-12)
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int n_data;
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// number of padding bits in the DATA field (17-13)
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int n_pad;
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int n_encoded_bits;
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void print_out() {
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std::cout << "TX Parameters:" << std::endl;
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std::cout << "psdu_size: " << psdu_size << std::endl;
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std::cout << "n_sym: " << n_sym << std::endl;
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std::cout << "n_data: " << n_data << std::endl;
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std::cout << "n_pad: " << n_pad << std::endl;
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}
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};
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class ofdm_decode_mac_impl : public ofdm_decode_mac {
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#define dout d_debug && std::cout
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public:
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ofdm_decode_mac_impl(bool debug) : gr::block("ofdm_decode_mac",
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ofdm_decode_mac_impl(bool debug) : block("ofdm_decode_mac",
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gr::io_signature::make(1, 1, 48 * sizeof(gr_complex)),
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gr::io_signature::make(0, 0, 0)),
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d_debug(debug),
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@@ -253,8 +112,19 @@ void decode() {
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print_output();
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// skip service field
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pmt::pmt_t blob = pmt::make_blob(out_bytes + 2, tx.psdu_size);
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message_port_pub(pmt::mp("out"), blob);
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boost::crc_32_type result;
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result.process_bytes(out_bytes + 2, tx.psdu_size);
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if(result.checksum() != 558161692) {
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dout << "checksum wrong -- dropping" << std::endl;
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return;
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}
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// create PDU
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pmt::pmt_t blob = pmt::make_blob(out_bytes + 2, tx.psdu_size - 4);
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pmt::pmt_t enc = pmt::from_uint64(ofdm.encoding);
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pmt::pmt_t dict = pmt::make_dict();
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dict = pmt::dict_add(dict, pmt::mp("encoding"), enc);
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message_port_pub(pmt::mp("out"), pmt::cons(dict, blob));
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}
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void demodulate() {
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