THP QR\4by4\16QAM\BER.m ......\....\.....\precoding.m ......\....\.....\THPMod.m ......\....\.....\THPprecodingmodel4by4.mdl ......\....\QPSK\BER.m ......\....\....\precoding.m ......\....\....\THPMod.m ......\....\....\THPprecodingmodel4by4.mdl ......\....\16QAM ......\....\QPSK ......\4by4 THP QR