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Wireless Energy Transmission Channel Modeling in Resonant Beam Charging for IoT Devices

Published on Apr 1, 2019in IEEE Internet of Things Journal 5.87
· DOI :10.1109/JIOT.2019.2894008
Wei Wang1
Estimated H-index: 1
(Chinese Academy of Sciences),
Qingqing Zhang2
Estimated H-index: 2
(Tongji University)
+ 3 AuthorsQingwen Liu11
Estimated H-index: 11
(Tongji University)
Abstract
Power supply for Internet of Things (IoT) devices is one of the bottlenecks in IoT development. To provide perpetual power supply for IoT devices, resonant beam charging (RBC) is a promising safe, long-range, and high-power wireless power transfer solution. How long distance RBC can reach and how much power RBC can transfer? In this paper, we analyze the consistent and steady operational conditions of the RBC system, which determine the maximum power transmission distance. Then, we study the power transmission efficiency within the operational distance, which determines the deliverable power through the RBC energy transmission channel. Based on the theoretical model of the wireless energy transmission channel, we establish a testbed. According to the experimental measurement, we validate our theoretical model. The experiments verify that the output electrical power at the RBC receiver can be up to 2 W. The maximum energy transmission distance is 2.6 m. Both the experimental and theoretical performance of the RBC system are evaluated in terms of the transmission distance, the transmission efficiency, and the output electrical power. Our theoretical model and experimental testbed lead to the guidelines for the RBC system design and implementation in practice.
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Published on Feb 1, 2019in IEEE Internet of Things Journal 5.87
Qingqing Zhang2
Estimated H-index: 2
(Tongji University),
Wen Fang2
Estimated H-index: 2
(Tongji University)
+ 3 AuthorsPengfei Xia2
Estimated H-index: 2
(Tongji University)
As a long-range high-power wireless power transfer (WPT) technology, resonant beam charging (RBC) can transmit watt-level power over long distance for the devices in the Internet of Things (IoT). Due to its open-loop architecture, RBC faces the challenge of providing dynamic current and voltage to optimize battery charging performance. In RBC, battery overcharge may cause energy waste, thermal effects, and even safety issues. On the other hand, battery undercharge may lead to charging time exten...
1 Citations Source Cite
Published on Oct 1, 2018in IEEE Internet of Things Journal 5.87
Qingqing Zhang2
Estimated H-index: 2
(Tongji University),
Wen Fang2
Estimated H-index: 2
(Tongji University)
+ 3 AuthorsLiuqing Yang36
Estimated H-index: 36
(Colorado State University)
Wireless power transfer (WPT) is a promising solution to provide convenient and perpetual energy supplies to electronics. Traditional WPT technologies face the challenge of providing Watt-level power over meter-level distance for Internet of Things (IoT) and mobile devices, such as sensors, controllers, smart-phones, laptops, etc. Distributed laser charging (DLC), a new WPT alternative, has the potential to solve these problems and enable WPT with the similar experience as WiFi communications. I...
5 Citations Source Cite
Published on Sep 1, 2018in IEEE Embedded Systems Letters
Kyriakos Georgiou6
Estimated H-index: 6
(University of Bristol),
Samuel Xavier-de-Souza5
Estimated H-index: 5
(Federal University of Rio Grande do Norte),
Kerstin Eder13
Estimated H-index: 13
(University of Bristol)
The Internet of Things (IoT) sparks a whole new world of embedded applications. Most of these applications are based on deeply embedded systems that have to operate on limited or unreliable sources of energy, such as batteries or energy harvesters. Meeting the energy requirements for such applications is a hard challenge, which threatens the future growth of the IoT. Software has the ultimate control over hardware. Therefore, its role is significant in optimizing the energy consumption of a syst...
8 Citations Source Cite
Published on May 1, 2018in IEEE Photonics Technology Letters 2.45
John Fakidis3
Estimated H-index: 3
(University of Edinburgh),
Stefan Videv13
Estimated H-index: 13
(University of Edinburgh)
+ 1 AuthorsHarald Haas56
Estimated H-index: 56
(University of Edinburgh)
In this letter, we demonstrate for the first time the additional capability of high-speed data communication for single-junction photovoltaic (PV) cells. A record 3-dB bandwidth of 24.5 MHz is reported for a gallium arsenide (GaAs) PV cell. The PV cell is shown to achieve a power efficiency of at least 42% when irradiance of 0.46 W/cm 2 is received from 847-nm vertical-cavity surface-emitted laser. Optimized bit-and-power-loaded optical orthogonal frequency-division multiplexing (OFDM) is applie...
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Published on Dec 1, 2017in IEEE Wireless Communications 9.20
Haijun Zhang19
Estimated H-index: 19
,
Yu Qiu2
Estimated H-index: 2
+ 2 AuthorsVictor C. M. Leung60
Estimated H-index: 60
In order to make Internet connections ubiquitous and autonomous in our daily lives, maximizing the utilization of radio resources and social information is one of the major research topics in future mobile communication technologies. FRAN is regarded as a promising paradigm for the fifth generation of mobile networks. FRAN integrates fog computing with RAN and makes full use of the edge of networks. FRAN would be different in networking, computing, storage, and control compared to conventional R...
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Published on Oct 1, 2017 in Asilomar Conference on Signals, Systems and Computers
Tianyi Chen8
Estimated H-index: 8
(University of Minnesota),
Yanning Shen8
Estimated H-index: 8
(University of Minnesota)
+ 1 AuthorsGeorgios B. Giannakis112
Estimated H-index: 112
(University of Minnesota)
The present paper deals with online convex optimization involving time-varying loss functions and time-varying constraints. The constraints are revealed after making decisions, and allow instantaneous violations yet they must be satisfied in the long term. This setting fits nicely emerging online tasks such as fog computing, where online decisions need to flexibly adapt to the temporally unpredictable availability of resources. Tailored for heterogeneous systems such as those involved in the Int...
2 Citations Source Cite
Published on Sep 1, 2017
Qingqing Zhang2
Estimated H-index: 2
(Tongji University),
Xiaojun Shi1
Estimated H-index: 1
+ 3 AuthorsYong Liao1
Estimated H-index: 1
Distributed laser charging (DLC) is a wireless power transfer technology for mobile electronics. Similar to traditional wireless charging systems, the DLC system can only provide constant power to charge a battery. However, Li-ion battery needs dynamic input current and voltage, thus power, in order to optimize battery charging performance. Therefore, neither power transmission efficiency nor battery charging performance can be optimized by the DLC system. We at first propose an adaptive DLC (AD...
1 Citations Source Cite
Published on Jan 1, 2017in IEEE Communications Surveys and Tutorials 20.23
Shui Yu30
Estimated H-index: 30
(Deakin University),
Meng Liu3
Estimated H-index: 3
(Nanjing University)
+ 2 AuthorsSanming Zhou16
Estimated H-index: 16
(University of Melbourne)
Complementary to the fancy big data applications, networking for big data is an indispensable supporting platform for these applications in practice. This emerging research branch has gained extensive attention from both academia and industry in recent years. In this new territory, researchers are facing many unprecedented theoretical and practical challenges. We are therefore motivated to solicit the latest works in this area, aiming to pave a comprehensive and solid starting ground for interes...
34 Citations Source Cite
Published on Dec 1, 2016in IEEE Vehicular Technology Magazine 6.04
Qingwen Liu11
Estimated H-index: 11
,
Jun Wu10
Estimated H-index: 10
(Tongji University)
+ 4 AuthorsLajos Hanzo65
Estimated H-index: 65
(University of Southampton)
Increasing the battery-recharge period of smartphones is becoming a challenge since their power consumption is increased as a result of enhanced functions that require sophisticated multimedia signal processing. An attractive solution is constituted by wireless charging, which is capable of replenishing the battery over the ether. Given this motivation, we present the fundamental physics and the related system structure of a promising wireless charging technique, i.e., distributed laser charging...
10 Citations Source Cite
Published on May 1, 2016in IEEE Transactions on Computers 3.05
Shui Yu30
Estimated H-index: 30
(Deakin University),
Wanlei Zhou34
Estimated H-index: 34
(Deakin University)
+ 1 AuthorsMinyi Guo34
Estimated H-index: 34
(Shanghai Jiao Tong University)
DDoS attack source traceback is an open and challenging problem. Deterministic packet marking (DPM) is a simple and effective traceback mechanism, but the current DPM based traceback schemes are not practical due to their scalability constraint. We noticed a factor that only a limited number of computers and routers are involved in an attack session. Therefore, we only need to mark these involved nodes for traceback purpose, rather than marking every node of the Internet as the existing schemes ...
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Cited By1
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Published on Sep 28, 2018in arXiv: Signal Processing
Mingliang Xiong1
Estimated H-index: 1
(Tongji University),
Qingwen Liu11
Estimated H-index: 11
(Tongji University)
+ 1 AuthorsPengfei Xia2
Estimated H-index: 2
The vision and requirements of the sixth generation (6G) mobile communication systems are expected to adopt free-space optical communication (FSO) and wireless power transfer (WPT). The laser-based WPT or wireless information transfer (WIT) usually faces the challenges of mobility and safety. We present here a mobile and safe resonant beam communication (RBCom) system, which can realize high-rate simultaneous wireless information and power transfer (SWIPT). We propose the analytical model to dep...