Although large-scale MIMO can offer a high spectral efficie ncy, there are a number of difficulties in its implementation. Among those, the computational complexity of MIMO detection is crucial and may limit its use at devices of limited computing power such as users’ mobile devices. Random sampling for large-scale MIMO detection of low complexity were studied. In particular, a MMSE approach for random sampling, was formulated from which an iterative detector can be derived for better performanc
