Cooperative Energy Broadcasting System With Massive MIMO

Different from information transmission, inter-cell interference benefits energy harvesting of energy users (EUs) in multi-cell scenario. Therefore, the objective of this letter is to maximize the average energy harvesting utility of multiple EUs by leveraging inter-cell cooperation. Considering cha...

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Veröffentlicht in:IEEE communications letters Jg. 20; H. 6; S. 1247 - 1250
Hauptverfasser: Zhao, Long, Zheng, Kan
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York IEEE 01.06.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Channels
Cooperation
Delay
Delays
Energy exchange
Energy harvesting
Energy transfer
Exchange
Fading channels
Information processing
Massive MIMO
MIMO
precoder
Stations
Utilities
Wireless communication
wireless energy transfer
precoder
wireless energy transfer
Massive MIMO
cooperation
ISSN:1089-7798, 1558-2558
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Zusammenfassung:Different from information transmission, inter-cell interference benefits energy harvesting of energy users (EUs) in multi-cell scenario. Therefore, the objective of this letter is to maximize the average energy harvesting utility of multiple EUs by leveraging inter-cell cooperation. Considering channel state information (CSI) delay, a cooperative energy precoder with centralized implementation is first proposed when the energy stations (ESs) employ massive multiple-input multiple-output. Then, its distributed implementation is presented in terms of a local constraint at each ES and information exchange among ESs. Results indicate that the cooperative energy transfer significantly outperforms the non-cooperative energy transfer with either perfect or delay CSI, and the proposed energy precoder with proportional fairness utility can balance the harvested energy and fairness among different EUs.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2016.2557800