add_CP.m

function y=add_CP(x,Ncp)
% Add cyclic prefix

%MIMO-OFDM Wireless Communications with MATLAB¢ç   Yong Soo Cho, Jaekwon Kim, Won Young Yang and Chung G. Kang
%2010 John Wiley & Sons (Asia) Pte Ltd

y = [x(:,end-Ncp+1:end) x];