Table 3 Simulation parameters.

Maximum battery capacity \(B_\textrm{max}\)

50 J

Minimum battery capacity \(B_\textrm{min}\)

0 J

Transmit power of the AP \(P_{0}\)

5 W

Noise power \(\sigma ^{2}\)

\(10^{-3}\) W

The circuit consumption of the BackCom \(p_1^{ba}\) and \(p_2^{ba}\)

0.1 W

The circuit consumption of the AC \(p_1^{ac}\) and \(p_2^{ac}\)

0.7 W

CPU frequency of \(MD_1\) \(f_{1}\)

500 MHz

CPU cycles to compute 1 bit task for \(MD_1\) \(\phi _{1}\)

490 cycles/bit

CPU frequency of \(MD_2\) \(f_{2}\)

480 MHz

CPU cycles to compute 1 bit task for \(MD_2\) \(\phi _{2}\)

470 cycles/bit

Computing efficiency parameter of \(MD_1\) \(\kappa _{1}\)

\(10^{-8}\)

Computing efficiency parameter of \(MD_2\) \(\kappa _{2}\)

\(10^{-8}\)

Antenna gain in the channel model \(A_d\)

3

Carrier frequency in the channel model \(f_c\)

915 MHz

Path loss exponent in the channel model \(d_e\)

3