TDMA in Adaptive Resonant Beam Charging for IoT Devices

Abstract

Resonant beam charging (RBC) can realize wireless power transfer (WPT) from a transmitter to multiple receivers via resonant beams. The adaptive RBC (ARBC) can effectively improve its energy utilization. In order to support multi-user WPT in the ARBC system, we propose the time-division multiple access (TDMA) method and design the TDMA-based WPT scheduling algorithm. Our TDMA WPT method has the features of concurrently charging, continuous charging current, individual user power control, constant driving power and flexible driving power control. The simulation shows that the TDMA scheduling algorithm has high efficiency, as the total charging time is roughly half (46.9% when charging 50 receivers) of that of the alternative scheduling algorithm. Furthermore, the TDMA for WPT inspires the ideas of enhancing the ARBC system, such as flow control and quality of service (QoS).

References in corpus (5)

• Wireless Charging Technologies: Fundamentals, Standards, and Network Applications
• Distributed Laser Charging: A Wireless Power Transfer Approach
• The IoT energy challenge: A software perspective
• Adaptive Distributed Laser Charging for Efficient Wireless Power Transfer
• Mobile Energy Transfer in Internet of Things

Cited by in corpus (5)

• Resonant Beam Communications with Photovoltaic Receiver for Optical Data and Power Transfer
• Channel-Dependent Scheduling in Wireless Energy Transfer for Mobile Devices
• Joint Orthogonal Band and Power Allocation for Energy Fairness in WPT System with Nonlinear Logarithmic Energy Harvesting Model
• High-Efficiency Resonant Beam Charging and Communication
• Mobile Power Network for Ultimate Mobility without Battery Life Anxiety