Intelligent Antennas for Cellular Systems
2009
Base-station antenna arrays are a promising method for providing large capacity increases in cellular mobile radio systems. This article describes some of the basic ideas behind antenna arrays for both time-division and code-division multiple-access networks. This paper considers channel-modeling issues, uplink space-time receiver structures, and a range of suitable algorithms to operate them. The potential capacity gains that can be achieved with antenna arrays are discussed and, finally, the extension of these techniques to the downlink is introduced.