For Chebyshev-tapered beamsteering, we set the side-lobe level equal to the maximum of noise power and residual interference caused by the diffuse component: begin{array}{*{20}l} text{SLL}_{u} = frac{1}{left|mathcal{S}right|-1} maxleft(sigma_{n,u}^{2},frac{1}{K+1}right), end{array} (32).
The PSNR is the ratio of the maximum power and the noise power, which is defined as: Figure 8 Test images (read from left to right in rows).
which we take as a maximum likelihood estimate for the noise power given a single row of the periodogram.
Four cases are considered for different combinations of maximum achievable data rate and noise power level, as specified in the horizontal axis.
The average percentage of muted PRBs per BS, for the four different scheduling schemes and four combinations of maximum achievable data rate and noise power level, is presented in Table 3.
Four cases with limitations on the maximum achievable data rate and the noise power level are considered.
such that the multi-user interference caused by the side-lobes is in the order of the maximum of diffuse background interference and noise power.
The true noise level is unknown, but for a given noise power, σ, the principle of maximum entropy leads to the use of a normal distribution, (7) A noise model of this form ensures that the accuracy of the results is maximally conservative for a given noise power.
Table 1 Simulation parameters used in all numerical examples Parameter Value Carrier frequency 2 GHz System bandwidth 10 MHz Maximum BS transmit power, (P^{max }_{text {BS}}) 20 W Maximum user transmit power, (P^{max }_{text {UE}}) 150 mW Noise power density −174 dBm/Hz Noise figure at a DLU receiver 9 dB Noise figure at a BS receiver 5 dB.
Therefore, the outer circle in the figure shows the maximum phase distribution when signal power is same as noise power.
