DocumentCode :
43059
Title :
Simultaneous wireless information and power transfer in modern communication systems
Author :
Krikidis, Ioannis ; Timotheou, Stelios ; Nikolaou, Symeon ; Gan Zheng ; Ng, Derrick Wing Kwan ; Schober, Robert
Author_Institution :
Univ. of Cyprus, Nicosia, Cyprus
Volume :
52
Issue :
11
fYear :
2014
fDate :
Nov. 2014
Firstpage :
104
Lastpage :
110
Abstract :
Energy harvesting for wireless communication networks is a new paradigm that allows terminals to recharge their batteries from external energy sources in the surrounding environment. A promising energy harvesting technology is wireless power transfer where terminals harvest energy from electromagnetic radiation. Thereby, the energy may be harvested opportunistically from ambient electromagnetic sources or from sources that intentionally transmit electromagnetic energy for energy harvesting purposes. A particularly interesting and challenging scenario arises when sources perform simultaneous wireless information and power transfer (SWIPT), as strong signals not only increase power transfer but also interference. This article provides an overview of SWIPT systems with a particular focus on the hardware realization of rectenna circuits and practical techniques that achieve SWIPT in the domains of time, power, antennas, and space. The article also discusses the benefits of a potential integration of SWIPT technologies in modern communication networks in the context of resource allocation and cooperative cognitive radio networks.
Keywords :
cognitive radio; energy harvesting; inductive power transmission; radio networks; rectennas; telecommunication power management; SWIPT systems; ambient electromagnetic sources; cooperative cognitive radio networks; electromagnetic energy; electromagnetic radiation; energy harvesting technology; external energy sources; hardware realization; rectenna circuits; resource allocation; wireless communication networks; wireless information; wireless power transfer; Decoding; Energy harvesting; Green products; Radio frequency; Receiving antennas; Telecommunication services; Wireless communication;
fLanguage :
English
Journal_Title :
Communications Magazine, IEEE
Publisher :
ieee
ISSN :
0163-6804
Type :
jour
DOI :
10.1109/MCOM.2014.6957150
Filename :
6957150
Link To Document :
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