Wireless Power Transmission: From Far Field to Near Field

Garnica, Jaime; Chinga, R. A.; Lin, Jenshan

doi:10.1109/jproc.2013.2251411

Cited by 321 publications

(149 citation statements)

References 19 publications

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“…Also, with renewable energy sources, the energy side information (ESI), which indicates the amount of available renewable energy, will play a key role in decision making for storage and computing applications. MEC devices may also be energized through wireless power transfer (WPT) [39,40], when the renewable energy is insufficient. WPT may be exploited for computational offloading in mobile devices [41] or data offloading for MEC in future networks [42,43].…”

Section: Energy Harvestingmentioning

confidence: 99%

Softwarization of Mobile Network Functions towards Agile and Energy Efficient 5G Architectures: A Survey

Dlamini

Rossi

Munaretto³

2017

Wireless Communications and Mobile Computing

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Future mobile networks (MNs) are required to be flexible with minimal infrastructure complexity, unlike current ones that rely on proprietary network elements to offer their services. Moreover, they are expected to make use of renewable energy to decrease their carbon footprint and of virtualization technologies for improved adaptability and flexibility, thus resulting in green and self-organized systems. In this article, we discuss the application of software defined networking (SDN) and network function virtualization (NFV) technologies towards softwarization of the mobile network functions, taking into account different architectural proposals. In addition, we elaborate on whether mobile edge computing (MEC), a new architectural concept that uses NFV techniques, can enhance communication in 5G cellular networks, reducing latency due to its proximity deployment. Besides discussing existing techniques, expounding their pros and cons and comparing state-of-the-art architectural proposals, we examine the role of machine learning and data mining tools, analyzing their use within fully SDN-and NFV-enabled mobile systems. Finally, we outline the challenges and the open issues related to evolved packet core (EPC) and MEC architectures.

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Section: Energy Harvestingmentioning

confidence: 99%

Softwarization of Mobile Network Functions towards Agile and Energy Efficient 5G Architectures: A Survey

Dlamini

Rossi

Munaretto³

2017

Wireless Communications and Mobile Computing

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“…Before delving into the topic of simultaneous wireless information and power transfer (SWIPT) [4,5], a brief introduction of wireless power transfer (WPT) is warranted [6]. Generally speaking, WPT can be carried out in two basic ways, based on either near-field EM induction in the form of inductive coupling and resonant coupling relying on coils or far-field EM radiation using microwave frequencies by relying on so-called rectennas.…”

Section: Engineering-oriented Backgroundmentioning

confidence: 99%

Wireless information and power transfer: from scientific hypothesis to engineering practice

2015

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Recently, there has been substantial research interest in the subject of simultaneous wireless information and power transfer (SWIPT) due to its cross-disciplinary appeal and its wide-ranging application potential, which motivates this overview. More explicitly, we provide a brief survey of the state of the art and introduce several practical transceiver architectures that may facilitate its implementation. Moreover, the most important link-level as well as system-level design aspects are elaborated on, along with a variety of potential solutions and research ideas. We envision that the dual interpretation of RF signals creates new opportunities as well as challenges requiring substantial research, innovation and engineering efforts.

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“…The microwave power transmission technique employs propagating electromagnetic waves in the microwave frequency range as the carrier of wireless power. Compared with techniques based on induc-tive coupling [4], microwave power transmission has the potential to reach longer distances (on the order of meters or even kilometers). Meanwhile, microwave power transmission enjoys several advantages relative to optical power transmission [5].…”

Section: Introductionmentioning

confidence: 99%

Microwave Power Transmission Based on Retro-reflective Beamforming

Wang¹,

Lu²

2016

Wireless Power Transfer - Fundamentals and Technologies

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Microwave power transmission has the potential to supply wireless power to portable/ mobile electronic devices over long distances (on the order of meters or even kilometers) efficiently. Nevertheless, several technical challenges remain to be resolved in order to accomplish practical microwave power transmission systems, including (i) minimizing power loss due to microwave propagation, (ii) preventing humans and other electrical systems from exposure to excessive microwave radiation, and (iii) reconfiguring wireless power transmission in reaction to environmental changes (such as physical movements of portable devices) in real time. In this chapter, a microwave power transmission scheme based on retro-reflective beamforming is proposed to address the above challenges. In the retro-reflective beamforming, wireless power transmission is guided by pilot signals. To be specific, one or more than one mobile device(s) broadcast pilot signals to their surroundings, and based on analyzing the pilot signals, a wireless power transmitter delivers focused power beam(s) onto the mobile device(s). Preliminary numerical and experimental results are presented to demonstrate the feasibility of the proposed retroreflective beamforming scheme.

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Wireless Power Transmission: From Far Field to Near Field

Cited by 321 publications

References 19 publications

Softwarization of Mobile Network Functions towards Agile and Energy Efficient 5G Architectures: A Survey

Softwarization of Mobile Network Functions towards Agile and Energy Efficient 5G Architectures: A Survey

Wireless information and power transfer: from scientific hypothesis to engineering practice

Microwave Power Transmission Based on Retro-reflective Beamforming

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