rx_viterbi_decode.m

OFDM系统的仿真代码MATLAB环境下

function out_bits = rx_viterbi_decode(rx_to_decoded_bits)

global sim_consts;

if sim_consts.ConvCodeRate == 1/2
   trel = poly2trellis(3,[6 7]); % Define trellis.
   tblen = 2; % Traceback length
   % Use hard decisions.
   out_bits = vitdec(rx_to_decoded_bits,trel,tblen,'cont','hard');
   
elseif sim_consts.ConvCodeRate == 2/3
  
elseif sim_consts.ConvCodeRate == 3/4
    
end