Power-Efficient and Secure WPCNs with Residual Hardware Impairments and a Non-Linear EH Model

Boshkovska E, Ng DWK, Schober R (2017)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2017

Event location: Singapore SG

ISBN: 978-1-5090-5019-2

DOI: 10.1109/GLOCOM.2017.8254967

Abstract

In this paper, we design a resource allocation algorithm for a wireless-powered communication network (WPCN) taking into account residual hardware impairments (HWIs) at the transceivers and the non-linearity of radio frequency (RF) energy harvesting (EH) circuits. In order to ensure communication secrecy, physical layer (PHY) security techniques are exploited to deliberately degrade the channel quality of a multiple-antenna eavesdropper. The resource allocation algorithm design is formulated as a non-convex optimization problem for the minimization of the total consumed power in the network, while guaranteeing the quality of service (QoS) of the information receivers (IRs). The globally optimal solution of the optimization problem is obtained via a one-dimensional search and semidefinite programming (SDP) relaxation. Numerical results demonstrate that the proposed scheme can significantly reduce the power consumption of the system compared to a baseline scheme, which assumes ideal hardware.

Authors with CRIS profile

Elena Boshkovska Lehrstuhl für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

University of New South Wales (UNSW) AU Australia (AU)

How to cite

APA:

Boshkovska, E., Ng, D.W.K., & Schober, R. (2017). Power-Efficient and Secure WPCNs with Residual Hardware Impairments and a Non-Linear EH Model. In IEEE (Eds.), Proceedings of the GLOBECOM 2017 - 2017 IEEE Global Communications Conference. Singapore, SG.

MLA:

Boshkovska, Elena, Derrick Wing Kwan Ng, and Robert Schober. "Power-Efficient and Secure WPCNs with Residual Hardware Impairments and a Non-Linear EH Model." Proceedings of the GLOBECOM 2017 - 2017 IEEE Global Communications Conference, Singapore Ed. IEEE, 2017.

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