<?xml version="1.0"?> <block> <name>POLAR code Configurator</name> <key>variable_polar_code_configurator</key> <import>from gnuradio.fec import polar</import> <var_make>self.$(id) = $(id) = polar.load_frozen_bits_info(False, $channel, $block_size, $num_info_bits, $design_snr, $mu)</var_make> <var_value>polar.load_frozen_bits_info(True, $channel, $block_size, $num_info_bits, $design_snr, $mu)</var_value> <make></make> <param> <name>Channel</name> <key>channel</key> <value>polar.CHANNEL_TYPE_BEC</value> <type>string</type> <option> <name>BEC</name> <key>polar.CHANNEL_TYPE_BEC</key> </option> <option> <name>AWGN</name> <key>polar.CHANNEL_TYPE_AWGN</key> </option> </param> <param> <name>Block size (N)</name> <key>block_size</key> <value>32</value> <type>int</type> </param> <param> <name>Info Bits (K)</name> <key>num_info_bits</key> <value>16</value> <type>int</type> </param> <param> <name>design SNR</name> <key>design_snr</key> <value>0.0</value> <type>float</type> </param> <param> <name>mu</name> <key>mu</key> <value>16</value> <type>int</type> </param> <doc>This block serves as an interface to the underlying Python functions for channel construction. Current channel types are: BEC/AWGN Block size must be a power of 2! Info Bits must be 0 smaller K smaller N Design SNR does affect the target transmission SNR and thus performance. The parameter mu is only relevant for AWGN channels. It is passed on to the corresponding Channel construction algorithm.</doc> </block>