Residual Hardware Impairments on Secure NOMA-Based Relay Systems

Meiling Li, Bassant Selim, Sami Muhaidat, Paschalis C. Sofotasios, Paul D. Yoo, Jie Liang, Anhong Wang

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

1 Scopus citations

Abstract

Non-orthogonal multiple access (NOMA) has been proposed as a promising technology that is capable of improving the spectral efficiency of fifth-generation wireless networks and beyond. However, in practical communication scenarios, transceiver architectures inevitably suffer from radio frequency (RF) front-end related impairments that cause non-negligible performance degradation. This issue can be addressed by analog and digital signal processing algorithms, but factors such as time-varying hardware characteristics and imperfect compensation schemes result to detrimental residual distortions. In the present contribution we investigate the physical layer security of NOMA-based amplify-and-forward relay systems under such realistically incurred residual hardware impairment (RHI) effects. Exact and asymptotic analytic expressions for the corresponding outage probability (OP) and intercept probability (IP) of the considered set up over multipath fading channels are derived and corroborated by respective simulation results. Based on this, it is shown that RHI affects both the legitimate users and eavesdroppers by increasing the OP and decreasing the IP. For a fixed OP, RHI generally increases the corresponding IP, thereby reducing the secure performance of the system. Further interesting insights are also provided, verifying the importance of the offered results for the effective design and deployment of secure cooperative communication systems.

Original languageBritish English
Title of host publication2019 22nd International Symposium on Wireless Personal Multimedia Communications, WPMC 2019
PublisherIEEE Computer Society
ISBN (Electronic)9781728154190
DOIs
StatePublished - Nov 2019
Event22nd International Symposium on Wireless Personal Multimedia Communications, WPMC 2019 - Lisbon, Portugal
Duration: 24 Nov 201927 Nov 2019

Publication series

NameInternational Symposium on Wireless Personal Multimedia Communications, WPMC
Volume2019-November
ISSN (Print)1347-6890

Conference

Conference22nd International Symposium on Wireless Personal Multimedia Communications, WPMC 2019
Country/TerritoryPortugal
CityLisbon
Period24/11/1927/11/19

Fingerprint

Dive into the research topics of 'Residual Hardware Impairments on Secure NOMA-Based Relay Systems'. Together they form a unique fingerprint.

Cite this