www.gusucode.com > 基于matlab编程空间复用空时码的仿真程序源码 > 基于matlab编程空间复用空时码的仿真程序源码/2Tx,2Rx,Spatial Multiplex/get80216map.m
function IQvalue=get80216map(Qam) % This function is used to calculate constellation IQ vector % Qam=4 -- QPSK, Qam=16 -- 16-QAM, Qam=64 -- 64QAM switch Qam, case 4, IQvalue = [1+1i 1-1i -1+1i -1-1i]/sqrt(2); case 16, col1 = [1+1i 1+3i 1-1i 1-3i]; % column 1 of constellation IQvalue = [col1 col1+2]; IQvalue = [IQvalue conj(-IQvalue)]/sqrt(10); case 64, quad1 = [3+3i 3+1i 3+5i 3+7i]; % quadrant 1 col1 = [quad1 conj(quad1)]; IQvalue = [col1 col1-2]; IQvalue = [IQvalue col1+2]; IQvalue = [IQvalue col1+4]; IQvalue = [IQvalue conj(-IQvalue)]/sqrt(42); end