wcl_giins.m

Hybrid DS-FH communication systems

%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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% 	Function to insert guard interval into transmission signal.
%	
% 	Copyright(c) 2009-2015 HanYang University Wireless Communication Lab
% 
% 	Date		Name            Version         Description
%   ----------  -----------     -----------     ---------------------------
% 	2009.05.22	JINMINGSONG     v1.00           Create
% 	2009.05.23	JINMINGSONG     v1.01           Upgrade
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

function [iout,qout]= WCL_giins(idata,qdata,fftlen,gilen,nd);

%****************** variables *************************
% idata    : Input Ich data
% qdata    : Input Qch data
% iout     : Output Ich data
% qout     : Output Qch data
% fftlen   : Length of FFT (points)
% gilen    : Length of guard interval (points)
% *****************************************************

idata1=reshape(idata,fftlen,nd);
qdata1=reshape(qdata,fftlen,nd);
idata2=[idata1(fftlen-gilen+1:fftlen,:); idata1];
qdata2=[qdata1(fftlen-gilen+1:fftlen,:); qdata1];

iout=reshape(idata2,1,(fftlen+gilen)*nd);
qout=reshape(qdata2,1,(fftlen+gilen)*nd);

%******************** end of file ***************************