channel_decoding.m

信道估计中所使用的关键程序希望对大家有帮助

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% 根据不同用户的信道编码参数,进行信道解码 
 
 
function decoded_user_bit = channel_decoding ( demod_user_bit , UserRS_Coding , UserTrellis,... 
                        TraceBackLen, user_bit_cnt , turn_on ) 
                     
if turn_on 
     
    %for u = 1:size( UserRS_Coding ,2) 
 
%         user_convdecode{u} = vitdec(demod_user_softbit{u},UserTrellis(u),TraceBackLen ,'cont','hard');         
%         user_convdecode{u} = user_convdecode{u}(TraceBackLen + 1:end); 
%         user_rsdecode{u} = rsdeco(user_convdecode{u},UserRS_Coding(1,u),UserRS_Coding(2,u)); 
%         user_rsdecode{u} = user_rsdecode{u}(1:user_bit_cnt(u)); 
  
        user_convdecode = vitdec(demod_user_bit,UserTrellis,TraceBackLen ,'cont','hard');         
        user_convdecode = user_convdecode(TraceBackLen + 1:end); 
        user_rsdecode = rsdeco(user_convdecode,UserRS_Coding(1),UserRS_Coding(2)); 
        decoded_user_bit = user_rsdecode(1:user_bit_cnt); 
        
         
        %end    
     
     
else 
    decoded_user_bit = demod_user_bit; 
     
end