Wireless Power Transfer and Energy Harvesting: Current Status and Future Prospects.

Area of Science:

• Electrical Engineering
• Wireless Communication
• Energy Systems

Background:

• Mobile devices rely on rechargeable batteries, facing limitations in capacity and requiring frequent charging.
• Wireless power supply methods, including energy harvesting and wireless power transfer, are emerging as promising solutions.
• Efficient energy management is crucial for the practical implementation of wireless power systems.

Purpose of the Study:

• To provide an overview of recent advancements in wireless power supply technologies.
• To present promising applications and future trends in wireless power.
• To propose and analyze an energy scheduling scheme for energy harvesting-powered device-to-device (D2D) relay networks.

Main Methods:

• Literature review of recent advances in wireless power supply.
• Formulation of an optimization problem for energy scheduling in EH-powered D2D networks.
• Development of a modified two-stage directional water filling algorithm to solve the energy scheduling problem.

Main Results:

• The study provides a comprehensive overview of wireless power supply technologies and their applications.
• A novel energy scheduling scheme is proposed for efficient energy management in D2D relay networks.
• The modified water filling algorithm effectively resolves the formulated energy scheduling optimization problem.

Conclusions:

• Wireless power supply offers a viable alternative to conventional batteries, with significant future potential.
• The proposed energy scheduling scheme enhances the efficiency of harvested energy utilization in D2D networks.
• The modified two-stage directional water filling algorithm demonstrates effectiveness in optimizing energy scheduling for wireless power systems.