Joint Design of Optimal Precoding and Cooperative Jamming for Multiuser Secure Broadcast Systems
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Joint Design of Optimal Precoding and Cooperative Jamming for Multiuser Secure Broadcast Systems. / Kang, Jae Mo; Yang, Jun; Ha, Jeongseok; Kim, Il Min.
I: IEEE Transactions on Vehicular Technology, Bind 66, Nr. 11, 8000595, 11.2017, s. 10551-10556.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Joint Design of Optimal Precoding and Cooperative Jamming for Multiuser Secure Broadcast Systems
AU - Kang, Jae Mo
AU - Yang, Jun
AU - Ha, Jeongseok
AU - Kim, Il Min
N1 - 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: jaemo.kang@queensu.ca; ilmin.kim@queensu.ca). Publisher Copyright: © 1967-2012 IEEE.
PY - 2017/11
Y1 - 2017/11
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.
AB - 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.
KW - Cooperative jamming
KW - multiuser system
KW - physical layer security
KW - power minimization
KW - precoding
UR - http://www.scopus.com/inward/record.url?scp=85028920208&partnerID=8YFLogxK
U2 - 10.1109/TVT.2017.2735414
DO - 10.1109/TVT.2017.2735414
M3 - Journal article
AN - SCOPUS:85028920208
VL - 66
SP - 10551
EP - 10556
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
SN - 0018-9545
IS - 11
M1 - 8000595
ER -
ID: 362746644