A New Approach of Implementation of MMSE Demodulator for Massive MIMO Systems

Multiple-Input Multiple Output (MIMO) is the key technology in most advanced wireless communication standarts like 3GPP Long Term Evolution (LTE) and IEEE 802.11n/ac/ad (Wi-Fi). The cost of MIMO improvements is increased computational complexity of the signal processing at both ends and, as a consequence, growing complexity of the hardware. We propose a new approach of implementation of traditional MMSE demodulator reducing computational complexity for massive MIMO systems.