Secrecy Performance Analysis of Multi-Antenna NOMA System with AF/DF relaying under External and Internal Eavesdropping Scenarios

Date
2020-06
Authors
Zaghdoud, Nesrine
Mnaouer, Adel Ben
Alouane, Wided Hadj
Boujemaa, Hatem
Touati, Farid
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
Abstract
Due to the successive interference cancellation (SIC) technique, Non orthogonal multiple Access (NOMA) users have the capability of decoding the other paired users sharing the same resource bloc. As a result, NOMA technique is not only exposed to external eavesdropping, but also to internal eavesdropping which raises security risks regarding NOMA users' privacy. Therefore, this research aims to analyse a Multi-antenna cooperative NOMA system where both Decode and Forward (DF) and Amplify and Forward (AF) strategies are studied. In this context, we investigate the secrecy performance of our system with both internal and external eavesdropping scenarios. Closed-form expressions of the secrecy outage probability (SOP) and the strictly positive secrecy capacity (SPSC) metrics are derived. Numerical results are given to illustrate the validity of the obtained theoretical results. © 2020 IEEE.
Description
This conference paper is not available at CUD collection. The version of scholarly record of this conference paper is published in 2020 International Wireless Communications and Mobile Computing (IWCMC) (2020), available online at: https://doi.org/10.1109/IWCMC48107.2020.9148104
Keywords
Amplify and Forward, Cooperative NOMA, Decode and Forward, external eavesdropping, internal eavesdropping, Multi-antenna, secrecy outage probability, strictly positive secrecy capacity, Antennas, Decoding, Mobile computing, Multiple access interference, Closed-form expression, Multiple access, Numerical results, Performance analysis, Secrecy outage probabilities, Successive interference cancellation(SIC), Security systems
Citation
Zaghdoud, N., Mnaouer, A. B., Alouane, W. H., Boujemaa, H., & Touati, F. (2020, June). Secrecy Performance Analysis of Multi-Antenna NOMA System with AF/DF relaying under External and Internal Eavesdropping Scenarios. In 2020 International Wireless Communications and Mobile Computing (IWCMC) (pp. 1726-1732). IEEE. https://doi.org/10.1109/IWCMC48107.2020.9148104