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%% Equivalent Function for Modulation function symbOut = MODULATION_MAPPER(data, mod_type) switch (mod_type) case 'QPSK' modulatedbits = zeros(floor(length(data)/2)-1,1); % write logic for QPSK symbol mapping , store the final symbols in 'symbOut' for it = 1:floor(length(data)/2)-1 modulatedbits(it) = (0.707)*( (1-2*data(2*it)) + (1-2*data(2*it+1))*i ); end symbOut = modulatedbits(:,1); case '64QAM' modulatedbits = zeros(floor(length(data)/6)-5,1); % write logic for 16 QAM symbol mapping , store the final symbols in 'symbOut' for it = 1:floor(length(data)/6)-5 modulatedbits(it) = (0.146)*((1-2*data(6*it))*(4-(1-2*data(6*it+2))*(2-(1-2*data(6*it+4))))+(1-2*data(6*it+1))*(4-(1-2*data(6*it+3))*(2-(1-2*data(6*it+5))))*i); end symbOut = modulatedbits(:,1); end end
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