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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%  Channel Encoding
%%  Copyright by Zheng Chen Potevio Institute of Technology
%%  Modification:
%%  Ver.1.0  2007-07-19
%%  Ver.1.1  2007-08-08  support svc lists
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% function Out = ChanEncode（In Params）
%% Parameter Describtion:
%% Input  : 
%%   In         :  dada bits for encoding
%%   Params     :  simulation parameters
%% Output : 
%%   Out        :  codeword
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function Out = ChanEncode（In Params）

CodeType = Params.CodeType;
SO = Params.SimOptions;
bit_per_frame = SO.CodeK;  % info bits                                     %720
Ri = SO.CodeR;                                                             %码率0.3

%% mapping order selection
mod_type = Params.ModulateMode;
mapp_type = Params.MappMode;

num_of_frame = SO.CodeC;                                                   %frame num

if （ rem（ num_of_frame*numel（In） bit_per_frame ） ）                      
    error（ ‘data length needs to be an integer multiple of the info length‘ ）;
end
InfoBit = reshape（In num_of_frame bit_per_frame）;                      

for index = 1:num_of_frame
    % turbo code
    if （CodeType == 1）
        CodeBit（index:） = TurboEncode（InfoBit（index:） Params）;
        
    % ldpc code
    elseif （CodeType == 2）
        if （mapp_type == 1）
            CodeBit_C = LdpcEncode（ InfoBit（index:） bit_per_frame Ri ）;
            MappCode = LdpcReorder（CodeBit_C bit_per_frame）;
            NumBit = length（MappCode）;
            MappIdx = MappIndex（NumBit mod_type）;
            MappCode_P = MappCode;
            for ii = 1 : NumBit
                MappCode_C（ii） = MappCode_P（MappIdx（ii））;
            end
            CodeBit（index:） = MappCode_C;
        else
            CodeBit（index:） = LdpcEncode（ InfoBit（index:） bit_per_frame Ri ）;
        end
    
    % convolutional code
    elseif （CodeType == 3）
        CodeBit（index:） = ConvolEncode（ InfoBit（index:） CodeType ）;
    
    % uncoded case
    else
        CodeBit（index:） = InfoBit（index:）;
    end

end

Ni = SO.CodeN;
[row col] = size（CodeBit）;
nn = row * col;
CodeBit_p = reshape（CodeBit 1 nn）;
fill_bits = SO.FillRMBit;
if （ fill_bits>0）
    Out = CodeBit_p（ 1 : Ni ）;
elseif （fill_bits<0）
    Out = horzcat（CodeBit_p zeros（1fill_bits））;
else
    Out = CodeBit_p;
end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% End of ChanEncode（）
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%  Turbo Encoder
%%  Copyright by Zheng Chen Potevio Institute of Technology
%%  Modification:
%%  Ver.1.0  2007-07-04
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件       13636  2018-02-15 20:59  ChanEncode.m
     目录           0  2018-02-15 20:59  __MACOSX\
     文件         671  2018-02-15 20:59  __MACOSX\._ChanEncode.m