Guo, Xiaoxi and Leong, Alex S. and Dey, Subhrakanti (2016) Power allocation for estimation outage minimization with secrecy outage constraints. In: 2016 Australian Communications Theory Workshop (AusCTW). IEEE, pp. 71-76. ISBN 978-1-5090-0133-0

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Abstract

In this paper, we investigate the distortion outage minimization problem for a wireless sensor network (WSN) in the presence of an eavesdropper. The observation signals transmitted from the sensors to the fusion center (FC) are over-heard by the eavesdropper. Both the FC and the eavesdropper reconstruct minimum mean squared error (MMSE) estimates of the physical quantity observed. We address the problem of transmit power allocation to minimize the distortion outage at the FC, subject to a long-term transmit power constraint among the sensors and a secrecy outage constraint at the eavesdropper. Applying a rigorous probabilistic power allocation technique we derive power policies for the full channel state information (CSI) case. Additional suboptimal power control policies are studied for the partial CSI case in order to reduce the high computational cost as the number of sensors or receive antennas grows. Numerical results show better performance can be achieved by adding multiple receive antennas at the FC.

Item Type:	Book Section
Additional Information:	Cite as: X. Guo, A. S. Leong and S. Dey, "Power allocation for estimation outage minimization with secrecy outage constraints," 2016 Australian Communications Theory Workshop (AusCTW), 2016, pp. 71-76, doi: 10.1109/AusCTW.2016.7433612.
Keywords:	Power allocation; estimation outage minimization; secrecy outage constraints;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	14543
Identification Number:	https://doi.org/10.1109/AusCTW.2016.7433612
Depositing User:	Subhrakanti Dey
Date Deposited:	15 Jun 2021 14:52
Publisher:	IEEE
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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