Figure 5

Rate region for outage probability 10% and 50%. Red (o): Single-antenna. Green (□): 1-bit mode 1. Blue (◇): 2-bit mode 1. Magenta ($▿$): ∞-bit mode 1. Solid line: ${\widehat{\gamma }}_{\text{th}}^{\left(c\right)}$. Dashed line: ${\check{\gamma }}_{\text{th}}^{\left(d\right)}$. Interference scenario: ${\stackrel{¯}{\gamma }}_{1\to 1}=15$ dB, ${\stackrel{¯}{\gamma }}_{1\to 2}=0$ dB, ${\stackrel{¯}{\gamma }}_{2\to 1}=15$ dB, and ${\stackrel{¯}{\gamma }}_{2\to 2}=20$ dB. All cases: P _N used as reference power.