Max-min fair wireless energy transfer for secure multiuser communication systems
Wing Kwan Ng D, Schober R (2014)
Publication Language: English
Publication Type: Conference contribution
Publication year: 2014
Event location: Hobart, TAS,
ISBN: 978-1-4799-5999-0
Abstract
This paper considers max-min fairness for wireless energy transfer in a downlink multiuser communication system. Our resource allocation design maximizes the minimum harvested energy among multiple multiple-antenna energy harvesting receivers (potential eavesdroppers) while providing quality of service (QoS) for secure communication to multiple single-antenna information receivers. In particular, the algorithm design is formulated as a non-convex optimization problem which takes into account a minimum required signal-to-interference-plus-noise ratio (SINR) constraint at the information receivers and a constraint on the maximum tolerable channel capacity achieved by the energy harvesting receivers for a given transmit power budget. The proposed problem formulation exploits the dual use of artificial noise generation for facilitating efficient wireless energy transfer and secure communication. A semidefinite programming (SDP) relaxation approach is exploited to obtain a global optimal solution of the considered problem. Simulation results demonstrate the significant performance gain in harvested energy that is achieved by the proposed optimal scheme compared to two simple baseline schemes.
Authors with CRIS profile
Involved external institutions
How to cite
APA:
Wing Kwan Ng, D., & Schober, R. (2014). Max-min fair wireless energy transfer for secure multiuser communication systems. In IEEE (Eds.), Proceedings of the 2014 IEEE Information Theory Workshop (ITW 2014). Hobart, TAS,, AU.
MLA:
Wing Kwan Ng, Derrick, and Robert Schober. "Max-min fair wireless energy transfer for secure multiuser communication systems." Proceedings of the 2014 IEEE Information Theory Workshop (ITW 2014), Hobart, TAS, Ed. IEEE, 2014.
BibTeX: Download