Correlation and Capacity Calculations with Reference Antennas in an Isotropic Environment

Figure 17

Capacity curves as functions of SNR for the “good,” “nominal,” and “bad” reference antennas in an isotropic environment. To achieve a capacity of 7 bps/Hz, the three reference antennas require very different SNR values: the bad reference antenna requires an SNR of 19 dB, whereas the good reference antenna requires only an SNR of 13 dB. The difference in SNR between good and bad reference antennas is in this case 6 dB. Similarly, to achieve a capacity of 12.5 bps/Hz, the difference in SNR between good and bad reference antennas is 7 dB.