source_generatorc_siso_20.m

A SISO 20M OFDM system based on IEEE802.11n standard, using Matlab.

function data = source_generator_siso_20(Mode)

%----------------------------------------------------------------------
%         source generator
%
%       Mode    Data_rate    Coding_rate    BPSC    CBPS    DBPS
%        1         13(Mbps)     1/2          2       104      52
%        2       19.5           3/4          2       104      78
%        3         26           1/2          4       208     104
%        4         39           3/4          4       208     156
%        6       58.5           3/4          6       312     234
%        7         65           5/6          6       312     260
%
%       ex. source_dat = source_generator_siso_20(Mode)
%----------------------------------------------------------------------

switch Mode
    case 1
        DBPS = 52;
    case 2
        DBPS = 78;
    case 3
        DBPS = 104;
    case 4
        DBPS = 156;
    case 6
        DBPS = 234;
    case 7
        DBPS = 260;
end

%--------------------------------------
%   尦僨乕僞偺惗惉
%--------------------------------------?

data = round(rand(1,DBPS));

% Viterbi暅崋偵旛偊偰
data(1,DBPS-5:DBPS) = 0;