Secured Communication among IoT Devices in the Presence of Cellular Interference

S. N. Islam, M. A. Mahmud, A. M.T. Oo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

This paper studies confidential message transmission in a relay aided IoT system in the presence of cellular interference. Here the IoT devices share the same spectrum resources as the cellular users (CU) and an eavesdropper attempts to extract the confidential messages from these devices. For this system, the expressions for the mean square errors (MSE) at the legitimate and eavesdropping users have been formulated. The precoding matrices are then optimized in such a manner that the MSEs at the legitimate receivers are kept small, whereas MSE at the eavesdropper is large. The analysis shows that increasing interference from CU can degrade the MSE performance at the eavesdropper. Also, it can be seen that with increasing distance between the devices and the eavesdropper, the MSE at the eavesdropper increases. On the other hand, increasing the distance between the CU and the eavesdropper decreases the MSE at the eavesdropper. Finally, numerical simulation results are provided to verify the validity of the analysis.

Original languageEnglish
Title of host publication2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781509059324
DOIs
Publication statusPublished - 7 Jun 2017
Externally publishedYes
Event85th IEEE Vehicular Technology Conference, VTC Spring 2017 - Sydney, Australia
Duration: 4 Jun 20177 Jun 2017

Publication series

NameIEEE Vehicular Technology Conference
Volume2017-June
ISSN (Print)1550-2252

Conference

Conference85th IEEE Vehicular Technology Conference, VTC Spring 2017
Country/TerritoryAustralia
CitySydney
Period4/06/177/06/17

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