You are required to read and agree to the below before accessing a full-text version of an article in the IDE article repository.
The full-text document you are about to access is subject to national and international copyright laws. In most cases (but not necessarily all) the consequence is that personal use is allowed given that the copyright owner is duly acknowledged and respected. All other use (typically) require an explicit permission (often in writing) by the copyright owner.
For the reports in this repository we specifically note that
- the use of articles under IEEE copyright is governed by the IEEE copyright policy (available at http://www.ieee.org/web/publications/rights/copyrightpolicy.html)
- the use of articles under ACM copyright is governed by the ACM copyright policy (available at http://www.acm.org/pubs/copyright_policy/)
- technical reports and other articles issued by M‰lardalen University is free for personal use. For other use, the explicit consent of the authors is required
- in other cases, please contact the copyright owner for detailed information
By accepting I agree to acknowledge and respect the rights of the copyright owner of the document I am about to access.
If you are in doubt, feel free to contact webmaster@ide.mdh.se
Secrecy Performance Analysis for Fixed-Gain Energy Harvesting in an Internet of Things with Untrusted Relays
Authors:
Van Nhan Vo
,
Dung Duc Tran
,
Chakchai So-In
,
Tran Hung Publication Type:
Journal article
DOI:
10.1109/ACCESS.2018.2867500
Abstract
In this paper, the radio frequency (RF) energy
harvesting (EH) and security issues in Internet of Things (IoT)
sensor networks with multiple untrusted relays are considered.
In particular, the communication protocol is divided into two
phases. The first phase is used for EH, in which the IoT
sensor nodes (SNs) and relays harvest energy from multiple
power transfer stations (PTSs). The second phase is used for
information transmission in two steps: 1) the selected SN uses the
harvested energy to broadcast information to the controller and
the relays, and 2) the selected relay forwards information to the
controller by applying the amplify-and-forward (AF) protocol to
improve the quality of the communication between the SN and
the controller. During information transmission, the controller
is at risk of losing information because the relay may act as
an eavesdropper (namely an untrusted relay). Thus, to improve
the secrecy performance of the considered system, we propose an
optimal scheme, namely best-sensor-best-untrusted-relay (BSBR),
and compare this scheme with random-sensor-random-untrustedrelay
(RSRR) and a threshold-based scheme. The closed-form
expressions for the secrecy outage probability (SOP) and secrecy
throughput (ST) are obtained and verified through Monte Carlo
simulations to confirm the superior performance of our approach.
EH time optimization and target secrecy rate optimization
algorithms are also proposed. In addition, the impacts of the
EH time, the EH efficiency coefficient, the numbers of SNs and
untrusted relays, and the target secrecy rate on the SOP and the
ST are investigated. The results indicate that the BSBR generally
outperforms the two baseline schemes in terms of the SOP and
ST.
Bibtex
@article{Nhan Vo5217,
author = {Van Nhan Vo and Dung Duc Tran and Chakchai So-In and Tran Hung},
title = {Secrecy Performance Analysis for Fixed-Gain Energy Harvesting in an Internet of Things with Untrusted Relays},
editor = {IEEE},
volume = {PP},
number = {99},
pages = {1--12},
month = {August},
year = {2018},
journal = {IEEE Access},
publisher = {IEEE},
url = {http://www.es.mdu.se/publications/5217-}
}