channel_decoding.m

OFDM的详细仿真代码

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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