Improving Wireless Physical Layer Security via Exploiting Co-Channel Interference

IEEE Trans.Inform.Forensic Secur.

2017

Self Cite

“…Concluding, a total of two precoding vector pairs can be picked from C2, and as such an S.D.o.F. of 2 can be achieved [30], [31]. Based on Fig.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Therefore, by applying the precoding matrix design of [30], [31] to this equivalent helperassisted wiretap channel, the maximum S.D.o.F. can be achieved.…”

Section: A the Proposed Transmission Scheme Which Achieves The Maximmentioning

confidence: 99%

See 1 more Smart Citation

MIMO Secret Communications Against an Active Eavesdropper

Petropulu

IEEE Trans.Inform.Forensic Secur.

2017

Self Cite

“…In 1978, Cheong et al studied the degraded Gaussian eavesdropping channel and demonstrated that the security capacity of the Gaussian eavesdropping channel is the difference between Alice-Bob channel capacity and Alice-Eve channel capacity. Then, Csizar et al considered a more general channel model, 12,13 the system also has broadcast information and secret information for transmission, and the channel is no longer limited to the degraded channel; this article gives the broadcast information and secret information transmission rate capacity. There is also a corresponding study of the scheme of adding artificial noise (AN) to the SISO, but the SISO channel has no extra freedom to provide.…”

Section: Related Workmentioning

confidence: 99%

A novel joint optimization of downlink transmission using physical layer security in cooperative 5G wireless networks

International Journal of Distributed Sensor Networks

Bai

et al. 2017

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Privacy and perspective are attracting more and more attention from worldwide users, so security in wireless communication system has become popular in recent researches, especially the physical layer security in 5G systems. In this article, we discuss the physical layer security in 5G downlink transmission systems; we propose the joint optimization of subcarrier, power, and artificial noise to achieve the higher security rate, our proposed method could approach to the upper bound of the security rate rather than the other methods, respectively. Then, in the simulation part, we present the theoretical and system-level simulation, and the results indicate that our proposed method could effectively increase the security rate without losing the system transmission speed.

“…In [24], we determined the maximum achievable S.D.o.F. region of a two-user wiretap channel with a source destination pair exchanging confidential messages, another pair exchanging public messages, and a passive eavesdropper who is interested in the communications of the former pair.…”

Section: Introductionmentioning

confidence: 99%

Linear Precoder Design for an MIMO Gaussian Wiretap Channel With Full-Duplex Source and Destination Nodes

IEEE Trans.Inform.Forensic Secur.

Petropulu

et al. 2018

Self Cite

Abstract-We consider linear precoder design for a multipleinput multiple-output (MIMO) Gaussian wiretap channel, which comprises two legitimate nodes, i.e., Alice and Bob, operating in Full-Duplex (FD) mode and exchanging confidential messages in the presence of a passive eavesdropper. Using the sum secrecy degrees of freedoms (sum S.D.o.F.) as reliability measure, we formulate an optimization problem with respect to the precoding matrices. In order to solve this problem, we first propose a cooperative secrecy transmission scheme, and prove that its feasible set is sufficient to achieve the maximum sum S.D.o.