Table 1 Simulation parameters

Number of PUs N

8

Number of SUs M

10

System bandwidth B _w

2 MHz

System center frequency f _c

1.9 GHz

Total power at the PBS

10 W

Total power at the CBS P ₀

13 W

Predefined SINR of PUs in dB ${\gamma }_p^{\text{dB}}$

10 dB

Interference violation probability σ^(p)

0.01

Antenna gain G _s

8 dBi

Number of subcarriers M

128

Path loss exponent α

4

Number of RT SUs I

5

Number of NRT SUs J

5

Delay of RT service $d_i^{\text{RT}}$ (time slots)

90

Symbol period T _s

40 μs

Real-time data rate R^RT (kbps)

[100,600]

Required average data rate $R_j^{\text{NRT}}$

300 kbps

Max. number of bits per subcarrier r_max

8 bits