Secrecy Outage of Max-Min TAS Scheme in MIMO-NOMA Systems

Hongjiang Lei, Jianming Zhang, Kihong Park, Peng Xu, Zufan Zhang, Gaofeng Pan, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

This paper considers a secure non-orthogonal multiple access system, where confidential messages are transmitted from a base station to multiple legitimate destinations and wiretapped by multiple illegitimate receivers. It is assumed that all the channels experience Nakagami-m fading model and all the nodes are equipped with multiple antennas, respectively. Both non-colluding and colluding eavesdroppers are respectively considered. Max-min (MM) transmit antenna selection (TAS) strategy is adopted to improve the secrecy performance of the target system, in which both users in user paring are considered simultaneously. In particular, closed-form expressions for the cumulative distribution function of the signal-to-interference-noise ratio at the legitimate user are derived firstly. Then we obtain the exact and asymptotic analytical results in a closed form for the secrecy outage probability of MM TAS scheme. Monte-Carlo simulation results are presented to corroborate the correctness of the analysis. The results show that the secrecy diversity order is zero and non-zero for fixed and dynamic power allocations, respectively.
Original languageEnglish (US)
Pages (from-to)6981-6990
Number of pages10
JournalIEEE Transactions on Vehicular Technology
Volume67
Issue number8
DOIs
StatePublished - Apr 9 2018

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported in part by the National Natural Science Foundation of China (NSFC) under Grant 61471076 and 61701066, Chinese Scholarship Council under Grant 201607845004, the Program for Changjiang Scholars and Innovative Research Team in University under Grant IRT 16R72, the special fund for Key Lab of Chongqing Municipal Education Commission, the Project of Fundamental and Frontier Research Plan of Chongqing under Grant cstc2017jcyjAX0204 and cstc2015jcyjBX0085, and the Scientific and Technological Research Program of Chongqing Municipal Education Commission under Grant KJ1600413 and KJ1704088.

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