interleave.m

ＭＩＭＯ－ＯＦＤＭ系统仿真

function X_interleave=interleave(X_code,INTERLEAVE,Interleave_Length)
%交织
global INTERLEAVE_TABLE   %交织映射表

if INTERLEAVE==1
    [antenna_Tx bit_length]=size(X_code);
    
    %生成交织映射表
    a=1:bit_length;
    b=zeros(Interleave_Length,bit_length/Interleave_Length);
    b(:)=a(:);
    temp=[b(Interleave_Length,:);b(1:(Interleave_Length-1),:)];
    temp=temp';
    INTERLEAVE_TABLE_temp=temp;
    for j=1:bit_length
         INTERLEAVE_TABLE(j,:)=[j INTERLEAVE_TABLE_temp(j)];
    end
    
    
    for i=1:antenna_Tx
        for j=1:bit_length
            X_interleave(i,INTERLEAVE_TABLE(j,2))=X_code(i,INTERLEAVE_TABLE(j,1));
        end
    end
else
    X_interleave=X_code;
end