The integration of MIMO technology in WLANs has recently been the focus of extensive research. The main objectives of this technology are to improve channel reuse and/or reduce energy consumption. In this article, we give an overview of MIMO systems and their use in WLANs. We highlight the different types of gains that MIMO offers and then discuss some of the work that has been done on MAC design. We conclude by outlining several open issues that must be addressed for MIMO-based systems.
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering