CR interference-to-noise ratio (dB) Average -40 -20 0 20  Interference at primary user (dBm) Full Projection Pre-coding -47.5 -27.5 -23 -25 Sensing Projection Pre-coding -47.5 -27.5 -26 -27.5 Partial Projection Pre-coding -47.5 -27.5 -23 -15

Table 2:Average interference in different pre-coding scheme with respect to CR interference to noise ratio.