Technology development for Multiple Input Multiple Output (MIMO) wireless communication has undergone significant growth over the past several years. While some research questions remain unanswered related to this topic, for the most part the technology currently exists for implementing MIMO in point-to-point links. Using multi-antenna approaches for multi-user networks, however, remains an area of intense investigation. This paper highlights some of the recent research in point-to-point MIMO systems and discusses the current and upcoming work relating to multi-user networks with MIMO enabled nodes.
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