qpskmod.m

Single/Multipath Channel Model Verificaiton EbNo vs. BER/SER under AWGN BPSK vs. QPSK Theory vs.

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% File Name: qpskmod.m
% Function: Modulation for QPSK
% Author: 
% Date: 2008.11.27
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function [iout,qout]=qpskmod(paradata,nd,ml)

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% variables %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% paradata : input data
% nd : number of data
% ml : number of modulation levels
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m2=ml./2;

paradata2=paradata.*2-1;
count2=1; %symbol accumulation

for jj=1:nd

	iout(1,jj) = paradata2(1,count2);
	qout(1,jj)= paradata2(1,m2+count2);

	count2=count2+ml;

end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% End %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%