Background

In this section, we review the limits of capacity for fading environments, the channel model for multiple-input, multiple-output (MIMO) systems, and the concept of diversity. Each of these topics is needed to help in the understanding of the techniques used in antenna diversity. We begin with a treatment of capacity for fading environments. Foschini and Gans [20] have noted that OFDM systems are particularly well-suited for enhanced capacity using antenna diversity techniques. The report is summarized in the next section.

Limits of Capacity in Fading Environments

The report in [20] was motivated by the need for fundamental understanding of the ultimate limits of bandwidth efficient delivery of higher bit-rates in digital wireless communications. ...

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