Joint Design of Optimal Precoding and Cooperative Jamming for Multiuser Secure Broadcast Systems

Jae Mo Kang; Jun Yang; Jeongseok Ha; Il Min Kim

doi:10.1109/TVT.2017.2735414

Joint Design of Optimal Precoding and Cooperative Jamming for Multiuser Secure Broadcast Systems

Jae Mo Kang, Jun Yang, Jeongseok Ha, Il Min Kim^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

7 Citations (Scopus)

Abstract

A multiuser secure broadcast system is considered, where there are one multiantenna base station (BS), multiple single-antenna legitimate users, one multiantenna friendly jammer (FJ), and one multiantenna eavesdropper (Eve). We jointly design the optimal precoding matrix at the BS and the jamming covariance matrix at the FJ by minimizing the total transmit power of the BS and FJ under the signal-to-interference-plus-noise ratio constraints at the users and Eve. To solve this challenging problem, when the FJ has more antennas than the users and Eve, we first find the optimal structure of the jamming covariance matrix and, then, convert the problem into its equivalent convex form. Also, we propose an iterative algorithm to jointly design the precoding and jamming covariance matrices in all scenarios. The solution obtained by this algorithm is shown to be asymptotically optimal when the FJ has more antennas than the users and Eve. Numerical results show that the proposed schemes considerably outperform the existing schemes.

Original language	English
Article number	8000595
Journal	IEEE Transactions on Vehicular Technology
Volume	66
Issue number	11
Pages (from-to)	10551-10556
Number of pages	6
ISSN	0018-9545
DOIs	https://doi.org/10.1109/TVT.2017.2735414
Publication status	Published - Nov 2017
Externally published	Yes

Bibliographical note

Funding Information:
Manuscript received March 9, 2017; revised June 7, 2017; accepted July 24, 2017. Date of publication August 3, 2017; date of current version November 10, 2017.This work was supported by the National Research Foundation of Korea under Grant NRF-2015R1A2A2A01007739 funded by the Korea Government (Minister of Science, ICT and Future Planning). The review of this paper was coordinated by Dr. M. Elkashlan. (Corresponding author: Il-Min Kim.) J-.M. Kang and I.-M. Kim are with the Department of Electrical and Computer Engineering, Queen’s University, Kingston, ON K7L 3N6, Canada (e-mail: [email protected]; [email protected]).

Publisher Copyright:
© 1967-2012 IEEE.

Keywords

Cooperative jamming
multiuser system
physical layer security
power minimization
precoding

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10.1109/TVT.2017.2735414

Cite this

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title = "Joint Design of Optimal Precoding and Cooperative Jamming for Multiuser Secure Broadcast Systems",

abstract = "A multiuser secure broadcast system is considered, where there are one multiantenna base station (BS), multiple single-antenna legitimate users, one multiantenna friendly jammer (FJ), and one multiantenna eavesdropper (Eve). We jointly design the optimal precoding matrix at the BS and the jamming covariance matrix at the FJ by minimizing the total transmit power of the BS and FJ under the signal-to-interference-plus-noise ratio constraints at the users and Eve. To solve this challenging problem, when the FJ has more antennas than the users and Eve, we first find the optimal structure of the jamming covariance matrix and, then, convert the problem into its equivalent convex form. Also, we propose an iterative algorithm to jointly design the precoding and jamming covariance matrices in all scenarios. The solution obtained by this algorithm is shown to be asymptotically optimal when the FJ has more antennas than the users and Eve. Numerical results show that the proposed schemes considerably outperform the existing schemes.",

keywords = "Cooperative jamming, multiuser system, physical layer security, power minimization, precoding",

author = "Kang, {Jae Mo} and Jun Yang and Jeongseok Ha and Kim, {Il Min}",

note = "Funding Information: Manuscript received March 9, 2017; revised June 7, 2017; accepted July 24, 2017. Date of publication August 3, 2017; date of current version November 10, 2017.This work was supported by the National Research Foundation of Korea under Grant NRF-2015R1A2A2A01007739 funded by the Korea Government (Minister of Science, ICT and Future Planning). The review of this paper was coordinated by Dr. M. Elkashlan. (Corresponding author: Il-Min Kim.) J-.M. Kang and I.-M. Kim are with the Department of Electrical and Computer Engineering, Queen{\textquoteright}s University, Kingston, ON K7L 3N6, Canada (e-mail: [email protected]; [email protected]). Publisher Copyright: {\textcopyright} 1967-2012 IEEE.",

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N2 - A multiuser secure broadcast system is considered, where there are one multiantenna base station (BS), multiple single-antenna legitimate users, one multiantenna friendly jammer (FJ), and one multiantenna eavesdropper (Eve). We jointly design the optimal precoding matrix at the BS and the jamming covariance matrix at the FJ by minimizing the total transmit power of the BS and FJ under the signal-to-interference-plus-noise ratio constraints at the users and Eve. To solve this challenging problem, when the FJ has more antennas than the users and Eve, we first find the optimal structure of the jamming covariance matrix and, then, convert the problem into its equivalent convex form. Also, we propose an iterative algorithm to jointly design the precoding and jamming covariance matrices in all scenarios. The solution obtained by this algorithm is shown to be asymptotically optimal when the FJ has more antennas than the users and Eve. Numerical results show that the proposed schemes considerably outperform the existing schemes.

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Joint Design of Optimal Precoding and Cooperative Jamming for Multiuser Secure Broadcast Systems

Abstract

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Keywords

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