Fig 1

Timeslot structure with cooperative mode of information and EH"

Fig 2

Performance of five algorithms for Griewank function"

Fig 3

Performance of five algorithms for Rastrigin function"

Fig 4

Relationship comparison of sum throughput and $\mathit{\boldsymbol{X_s}}$"

Fig 5

Relationship comparison of SU's throughput and $\mathit{\boldsymbol{X_s}}$"

Fig 6

Comparison of PU and SU's sum throughput traces with three schemes"

Fig 7

hroughput traces of SU only with three schemes"

Fig 8

Comparison of sum throughput for PU and SU in different PU's energy supply rates"

Fig 9

Comparison of SU's throughput with diverse PU's energy supply rates"

Fig 10

Comparison of sum throughput for PU and SU in different $ \mathit{\boldsymbol{r_s}} $"

Fig 11

Comparison of SU's throughput in different $\mathit{\boldsymbol{r_s}}$"

Fig 12

Comparison of sum throughput for SU and PU in different $ \mathit{\boldsymbol{\gamma _p}} $"

Fig 13

Relationship of sum throughput in different PU's energy supply rates"

Fig 14

SU's throughput with different PU's energy supply rates"

Fig 15

Relationship of sum throughput with different $\mathit{\boldsymbol{X_{sp}}}$"

Fig 16

Relationship curves of SU's throughput with diverse $\mathit{\boldsymbol{X_{sp}}}$"

Fig 17

Relationship of sum throughput with different $\mathit{\boldsymbol{r_p}}$"

Fig 18

Relationship of SU's throughput with different $\mathit{\boldsymbol{r_p}}$"