Multi-user MIMO systems: the future in the making

The consummation of all the research work in MU-MIMO systems will be in the form of a standard. It will require collating all the research findings into a deployable standard with well defined transmit and receive processing, scheduling options, receiver training fields, CSI feedback rates, and other specifications essential for compatibility. MU-MIMO technology offers aspiring researchers an exciting challenge and an opportunity to work on a solution that vies for a spot that will make it key technology in future cellular systems. This article aims at giving an insight into MU-MIMO systems - its concept, fundamentals, and trends including an overview/of important research results. It is intended at giving a good start to amateurs interested in being part of the community that shapes the future of wireless systems.