Table 2 Parameter setting

Average channel gain from the PB to devices \(g_k\)

1

Average channel gain from the devices to the CAP \(h_k\)

1

Transmit power at devices \(p_k\)

1 W

Duration of a time slot \(\Gamma\)

20 s

Energy harvesting efficiency coefficient \(\beta\)

0.88

Transmit power at the PB \(p_t\)

27 dBw

Total wireless bandwidth B

20 MHz

Computation capability at the CAP \(f_\text{CAP}\)

10 MHz

The smallest value of the data stream \(d_{\min }\)

10 Mb

The biggest value of the data stream \(d_{\max }\)

20 Mb

Inertia factor \(\omega _{\max }\)

0.9

Inertia factor \(\omega _{\min }\)

0.4

Total time slot T

100

Variance of the AWGN at the CAP \(\sigma ^2\)

0.01

Number of swarm particles J

20

Acceleration factors \(c_1\) and \(c_2\)

0.4, 0.4