MIMO QR-ZF Detector is QR factorisation of MIMO Channel Matrix H. The BER performance of MIMO-ZF and MIMO QR-ZF is same. On the otherway, The complexity of QR-ZF decreases (Requires only N^2 order of operations) compared to (N^3 complex multiplications, additions) for psudeo matrix inversion based MIMO Detection. A Sample Code for MIMO QR-ZF Detector is attached.