ZTE Communications ›› 2018, Vol. 16 ›› Issue (1): 26-37.DOI: 10.3969/j.issn.1673-5188.2018.01.005

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Recent Advances of Simultaneous Wireless Information and Power Transfer in Cellular Networks

LIU Binghong, PENG Mugen, ZHOU Zheng   

  1. Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2017-12-17 Online:2018-02-25 Published:2020-03-16
  • About author:LIU Binghong (2013210720@bupt.edu.cn) received the B.S. degree in communication engineering from Beijing University of Posts and Telecommunications (BUPT), China in 2017. She is currently pursuing the Ph.D. degree at BUPT. Her research interests include energy harvesting and fog radio access networks.|PENG Mugen (pmg@bupt.edu.cn) received the B.E. degree in electronics engineering from Nanjing University of Posts & Telecommunications, China in 2000, and the Ph.D. degree in communication and information system from the Beijing University of Posts & Telecommunications (BUPT), China in 2005. Afterward, he joined BUPT, and became a full professor with the School of Information and Communication Engineering, BUPT, in October 2012. During 2014, he was also an Academic Visiting Fellow at Princeton University, USA. He is leading a research group focusing on wireless transmission and networking technologies in the Key Laboratory of Universal Wireless Communications (Ministry of Education), BUPT. He has authored/coauthored more than 60 refereed IEEE journal papers and over 200 conference proceeding papers. His research interests include wireless communication theory, radio signal processing and convex optimizations, with particular interests in cooperative communication, radio network coding, self-organization networking, heterogeneous networking, and cloud communication.|ZHOU Zheng (nczhouzheng@gmail.com) received the B.S. degree in information engineering from Beijing University of Posts and Telecommunications (BUPT), China in 2012. He is currently pursuing the Ph.D. degree at BUPT. His research interests include simultaneous information and power transfer and cloud radio access networks.

Abstract:

As a promising solution to alleviating the energy bottleneck in wireless devices with limited battery capacity, simultaneous wireless information and power transfer (SWIPT) techniques have been widely researched in cellular networks. To further improve the spectral and energy efficiency of wireless information and power transfer, the combination of SWIPT and new techniques in cellular networks has drawn much attention recently. In this paper, we comprehensively survey the key techniques for SWIPT, the combination of SWIPT and new techniques in cellular networks, challenges and open issues. The key techniques for SWIPT including traditional power splitting, time switching, etc., and joint receiving and transmitting techniques such as eigenchannels and mixed signals are provided in detail. Furthermore, the applications of SWIPT to recent techniques such as SWIPT-assisted non-orthogonal multiple access, SWIPT-assisted device-to-device communication, and SWIPT-assisted full-duplex communication, are comprehensively summarized in this paper. The potential open issues including the management of dynamic harvested energy, trading between wireless power transfer and traffic offloading, and effects of the mode switching at energy harvesting devices, are outlined as well.

Key words: SWIPT, non-orthogonal multiple access, device-to-device communication, full-duplex communication