Simultaneous Wireless Information and Power Transfer (SWIPT): Recent Advances and Future Challenges
Simultaneous Wireless Information and Power Transfer (SWIPT): Recent Advances and Future Challenges
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DOI：
10.1109/comst.2017.2783901
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发表时间：
2018-01-01
影响因子：
35.6
通讯作者：
Li, Jun
中科院分区：
文献类型：
--
作者：
Perera, Tharindu D. Ponnimbaduge;Jayakody, Dushantha Nalin K.;Li, Jun
无线电力传输（WPT）的最初努力集中在长距离传输和高功率应用上。然而，由于高功率应用而产生的较低的可实现的传输效率和潜在的健康问题已经限制了它们的进一步发展。由于不断增加的连接设备带来的巨大能源消耗增长，替代无线信息和功率传输技术不仅对于理论研究而且对于节省运营成本和无线通信的可持续增长都很重要。在这方面，用于无线通信系统的射频能量收集（RF-EH）提出了一种新的范例，其允许无线节点从RF信号而不是固定电网和传统能源对其电池进行再充电。在该方法中，RF能量从环境电磁源或从用于EH目的的定向发射RF能量的源收集。在过去十年中，在这方面开展了值得注意的研究活动并取得了重大进展。因此，本文提供了一个全面的调查的最先进的技术，基于进步和开放的问题，提出了同步无线信息和电力传输（SWIPT）和WPT辅助技术。更具体地说，在现有的作品相比，本文确定并提供了一个详细的描述，各种潜在的新兴技术的第五代通信SWIPT/WPT。此外，我们还提供了一些有趣的研究挑战和建议，旨在刺激这一新兴领域的未来研究。
Initial efforts on wireless power transfer (WPT) have concentrated toward long-distance transmission and high power applications. Nonetheless, the lower achievable transmission efficiency and potential health concerns arising due to high power applications, have caused limitations in their further developments. Due to tremendous energy consumption growth with ever-increasing connected devices, alternative wireless information and power transfer techniques have been important not only for theoretical research but also for the operational costs saving and for the sustainable growth of wireless communications. In this regard, radio frequency energy harvesting (RF-EH) for a wireless communications system presents a new paradigm that allows wireless nodes to recharge their batteries from the RF signals instead of fixed power grids and the traditional energy sources. In this approach, the RF energy is harvested from ambient electromagnetic sources or from the sources that directionally transmit RF energy for EH purposes. Notable research activities and major advances have occurred over the last decade in this direction. Thus, this paper provides a comprehensive survey of the state-of-art techniques, based on advances and open issues presented by simultaneous wireless information and power transfer (SWIPT) and WPT assisted technologies. More specifically, in contrast to the existing works, this paper identifies and provides a detailed description of various potential emerging technologies for the fifth generation communications with SWIPT/WPT. Moreover, we provide some interesting research challenges and recommendations with the objective of stimulating future research in this emerging domain.