摘要
In the vision of the incoming 5G era,billions of people as well as trillions of ma chines are expected to be connected by the next generation mobile network.However,functions of massive communication devices have been substantially limited by insufficient power supply.As an efficient solution,dedicated RF sig nals are capable of carrying wellcontrolled energy towards the rechargeable devices in order to achieve ondemand energy transfer.Although RF signals are capable of simulta neously carrying both data and energy,diverse requirements of data and energy trans fers pose huge challenges in their effective integration.For example,the energy receiver and the data receiver have diverse sensitivity to the received power.The received power as low as-80 dBm is sufficient for recovering contaminated packets,thanks to thestate oftheart channel encoding/decoding techniques.However,only when the received pow er is higher than-20 dBm,the energy reception circuit can be effectively activated for converting a fraction of the energy carried by RF signals to the direct current(DC).
