Traditional communication system fails to utilize the energy of radio frequency signals effectively

which can result in high transmission energy consumption. Therefore

resources must be allocated reasonably to achieve a compromise between information and energy transmission. That is to ensure sufficient transmission energy and improve the information transmission performance of the system as much as possible. In order to save the energy of the communication system

this paper proposes that the communication system simultaneously transmits information and energy in multiple time slots to realize Simultaneous Wireless Information and Power Transfer (SWIPT). First

the transmission time was divided into a number of time slots

and the transmitter transmitted information or energy in different time slots as required. Then

the receiver collected information or harvested energy in the corresponding time slot

and the obtained energy was used to provide circuit energy consumption. Finally

by jointly optimizing the time slot and power allocation

the system transmission rate was maximized based on the guaranteed system energy requirements. Simulation results show that compared with the equal-time power allocation algorithm

the transmission efficiency of the proposed algorithm was improved by about 40 bps

and the performance was significantly improved with the increase of the number of the time slots. When the transmission energy increased

the distributable information power was greater. When the energy demand increased

the information power decreased

and more power was used for energy transmission. Hence

an algorithm was proposed to maximize the performance of information transmission by reasonably allocating time slots and power for information transmission and energy harvesting to ensure sufficient acquisition energy. Therefore

the proposed algorithm could improve the transmission performance effectively via harvesting the wireless power.