Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Xi'an Jiaotong Daxue xuebao

An Adaptive Secret Transmission Rate Scheme in SIMO Wireless Wiretap Channel

Yilin Zhong

Published Jan 1, 2015• 0 citations
OpenAlex

Abstract

An adaptive secret transmission rate scheme with secret outage probability constraint in SIMO wireless wiretap channel is proposed to consider the physical layer security issue for the wireless communication with secrecy outage. The channel estimation and channel fading characteristics are used to obtain the channel state information(CSI)about the channel from the transmitter to the legitimate receiver(the main channel)and the CSI about the channel from the transmitter to the eavesdropper(the eavesdropper's channel),respectively.When the CSI about the main channel is known while the CSI about the eavesdropper's channel is not known by the transmitter,the secrecy rate is adjusted according to the CSI of the main channel and the probability density function of the eavesdropper's channel,and the emission threshold is obtained according to the definition of secrecy outage.Then the secrecy throughput is maximized in the condition of satisfying the constraint of secrecy outage probability.The quasi-static Rayleighfading channel is used in the simulation.Simulation results show that when secrecy outage probability is lower than 0.1and the antenna number of the legitimate receivers is no less than that of eavesdropper,the secrecy throughput of the proposed approach is twice that of the previous methods for SISO system,and that as long as there are sufficient antennas in the legitimate receiver,the secrecy throughput of SIMO system is larger than that of SISO system even if the antenna number of the legitimate receivers is smaller than that of eavesdropper.

Related papers

A new scheme to improve the secrecy throughput under the constraints of secrecy outage probability and average transmit power

Pengcheng Mu, Peizhi Yang, Bo Wang +2 more

The issue of physical layer security for the wireless communication with slow fading is addressed in this paper, and the secrecy outage performance is concerned. The system is modeled as a wiretap channel, and each of the transmitter and receivers is equipped with a single antenna. The channel state information (CSI) about the channel from the transmitter to the legitimate receiver (the main channel) is assumed to be perfectly known by the transmitter and the receivers, while the transmitter does not know the CSI about the channel from the transmitter to the eavesdropper (the eavesdropper's channel) but its probability density function (PDF). Differing from the fixed secrecy rate scheme and the on/off scheme in the literature, this paper adaptively chooses the secrecy rate. The secrecy rate for each value of the main channel gain is determined by the required secrecy outage probability and the PDF of the eavesdropper's channel, and the secrecy throughput is maximized under the constraint of the transmit power for the required secrecy outage probability. The quasi-static Rayleigh fading channel is used to compare our scheme with the two existing schemes, and simulation results show that our scheme outperforms them when small secrecy outage probabilities are required.

IEEE International Conference on Communications workshops•Jun 1, 2014•5 citations

Practical Transmission Scheme With Fixed Communication Rate Under Constraints of Transmit Power and Secrecy Outage Probability

Zongmian Li, Pengcheng Mu, Bo Wang +1 more

The issue of physical layer security in single-antenna wiretap channels with slow fading is addressed in this letter. With the assumption of perfect channel state information (CSI) about the main channel and statistical CSI about the eavesdropper's channel, we propose a new secure transmission scheme under the constraints of transmit power and secrecy outage probability (SOP). This scheme fixes the communication rate and adaptively adjusts the secrecy rate and the transmit power during transmission, which is different from the conventional adaptive and non-adaptive schemes in the literature. By fixing the communication rate, the proposed scheme fixes the length of codebook and thus simplifies the codebook design. Simulation results show that the proposed scheme performs well when the SOP constraint is strict.

IEEE Communications Letters•Apr 10, 2015•17 citations

An Adaptive Transmission Scheme for Slow Fading Wiretap Channel with Channel Estimation Errors

Zongze Li, Pengcheng Mu, Zongmian Li +3 more

In this paper, we investigate the physical-layer security of slow fading wiretap channel with channel estimation errors. We aim to maximize the reliable secrecy rate under constraints of secrecy outage probability and reliability outage probability. To this end, we propose an adaptive (ADP) transmission scheme in which the communication rate and secrecy rate are adaptively adjusted based on the estimated imperfect channel state information (CSI) of the legitimate channel. The optimal solution is obtained by solving a single-variable maximization problem, where the objective function is log-concave. Numerical results are provided to verify our approach as well as to show the impact of imperfect CSI on the secrecy throughput.

Globecom•Dec 1, 2016•5 citations

Secrecy capacity and secure outage performance for rayleigh fading simo channel

Md. Zahurul I. Sarkar, Tharmalingam Ratnarajah

In this paper, we consider the problem of secret communication through Rayleigh fading single-input multiple-output (SIMO) broadcast channel in the presence of an eavesdropper. At first, we define the ergodic secrecy capacity and find the optimal power allocation at the transmitter that achieves the secrecy capacity for the full channel state information (CSI) case, where transmitter has access to both the main channel and eavesdropper's channel gains, and for the case of only main channel CSI at the transmitter. Then, we define the secrecy capacity in case of open-loop transmission scheme and present the analytical expression for the lower bound of ergodic secrecy capacity. We also find the analytical expression for secure outage probability to study the secure outage performance of the proposed model.

IEEE International Conference on Acoustics Speech and Signal Processing•May 1, 2011•9 citations

Beamforming for secrecy rate maximization under outage constraints and partial CSI

Sabrina Gerbracht, Christian Scheunert, Eduard Axel Jorswieck

Secrecy on the physical layer is a promising technique to simplify the overall cross-layer secrecy concept. In many recent works on the multiple antenna wiretap channel, perfect channel state information to the intended receiver as well as the passive eavesdropper are assumed. In this work, the transmitter has only partial information about the channel to the eavesdropper, but full information on the main channel to the intended receiver. The applied channel model is the flat-fading multiple-input single-output wiretap channel. We minimize the outage probability of secure transmission under single-stream beamforming. Additionally, we derive a suboptimal beamforming scheme based on a Markov bound, which performs reasonably well. The results generalize the cases with perfect as well as without channel state information of the eavesdropper channel. Numerical simulations illustrate the secrecy outage probability over the degree of channel knowledge and confirm the theoretical results.

Asilomar Conference on Signals, Systems and Computers (ACSSC)•Nov 1, 2011•8 citations

Secrecy rate maximization for SIMO wiretap channel with uncoordinated cooperative jamming under secrecy outage probability constraint

Xiaoyan Hu, Pengcheng Mu, Bo Wang +3 more

A practical uncoordinated cooperative jamming (UCJ) scheme with multiple single-antenna helpers is proposed in this paper to enhance the physical layer security of single-input-multiple-output (SIMO) wiretap channel. In the scheme, both the intended receiver and the eavesdropper are equipped with multiple antennas and apply the minimum mean-square error (MMSE) combiner. The multiple uncoordinated single-antenna helpers transmit jamming signals independently to confound the eavesdropper, and we focus on power allocation for the helpers to solve the secrecy rate maximization (SRM) problem. Assuming that the statistical channel state information (CSI) concerning the eavesdropper is available, a convex conservative secrecy outage probability (SOP) constraint is derived and then used to solve the SRM problem with DC (difference of convex function) programming method. Furthermore, a bisection-like refinement method is provided to find a quality solution of the SRM problem with the original SOP constraint. Numerical results show that the proposed scheme has good secrecy performance especially when the number of helpers is large.

IEEE Wireless Communications and Networking Conference•Apr 1, 2016•2 citations
An adaptive secret transmission rate scheme with secret outage probability constraint in SIMO wireless wiretap channel is proposed to consider the physical layer security issue for the wireless communication with secrecy outage. The channel estimation and channel fading characteristics are used to obtain the channel state information(CSI)about the channel from the transmitter to the legitimate receiver(the main channel)and the CSI about the channel from the transmitter to the eavesdropper(the eavesdropper's channel),respectively.When the CSI about the main channel is known while the CSI about the eavesdropper's channel is not known by the transmitter,the secrecy rate is adjusted according to the CSI of the main channel and the probability density function of the eavesdropper's channel,and the emission threshold is obtained according to the definition of secrecy outage.Then the secrecy throughput is maximized in the condition of satisfying the constraint of secrecy outage probability.The quasi-static Rayleighfading channel is used in the simulation.Simulation results show that when secrecy outage probability is lower than 0.1and the antenna number of the legitimate receivers is no less than that of eavesdropper,the secrecy throughput of the proposed approach is twice that of the previous methods for SISO system,and that as long as there are sufficient antennas in the legitimate receiver,the secrecy throughput of SIMO system is larger than that of SISO system even if the antenna number of the legitimate receivers is smaller than that of eavesdropper.
The issue of physical layer security for the wireless communication with slow fading is addressed in this paper, and the secrecy outage performance is concerned. The system is modeled as a wiretap channel, and each of the transmitter and receivers is equipped with a single antenna. The channel state information (CSI) about the channel from the transmitter to the legitimate receiver (the main channel) is assumed to be perfectly known by the transmitter and the receivers, while the transmitter does not know the CSI about the channel from the transmitter to the eavesdropper (the eavesdropper's channel) but its probability density function (PDF). Differing from the fixed secrecy rate scheme and the on/off scheme in the literature, this paper adaptively chooses the secrecy rate. The secrecy rate for each value of the main channel gain is determined by the required secrecy outage probability and the PDF of the eavesdropper's channel, and the secrecy throughput is maximized under the constraint of the transmit power for the required secrecy outage probability. The quasi-static Rayleigh fading channel is used to compare our scheme with the two existing schemes, and simulation results show that our scheme outperforms them when small secrecy outage probabilities are required.
The issue of physical layer security in single-antenna wiretap channels with slow fading is addressed in this letter. With the assumption of perfect channel state information (CSI) about the main channel and statistical CSI about the eavesdropper's channel, we propose a new secure transmission scheme under the constraints of transmit power and secrecy outage probability (SOP). This scheme fixes the communication rate and adaptively adjusts the secrecy rate and the transmit power during transmission, which is different from the conventional adaptive and non-adaptive schemes in the literature. By fixing the communication rate, the proposed scheme fixes the length of codebook and thus simplifies the codebook design. Simulation results show that the proposed scheme performs well when the SOP constraint is strict.
In this paper, we investigate the physical-layer security of slow fading wiretap channel with channel estimation errors. We aim to maximize the reliable secrecy rate under constraints of secrecy outage probability and reliability outage probability. To this end, we propose an adaptive (ADP) transmission scheme in which the communication rate and secrecy rate are adaptively adjusted based on the estimated imperfect channel state information (CSI) of the legitimate channel. The optimal solution is obtained by solving a single-variable maximization problem, where the objective function is log-concave. Numerical results are provided to verify our approach as well as to show the impact of imperfect CSI on the secrecy throughput.
In this paper, we consider the problem of secret communication through Rayleigh fading single-input multiple-output (SIMO) broadcast channel in the presence of an eavesdropper. At first, we define the ergodic secrecy capacity and find the optimal power allocation at the transmitter that achieves the secrecy capacity for the full channel state information (CSI) case, where transmitter has access to both the main channel and eavesdropper's channel gains, and for the case of only main channel CSI at the transmitter. Then, we define the secrecy capacity in case of open-loop transmission scheme and present the analytical expression for the lower bound of ergodic secrecy capacity. We also find the analytical expression for secure outage probability to study the secure outage performance of the proposed model.
Secrecy on the physical layer is a promising technique to simplify the overall cross-layer secrecy concept. In many recent works on the multiple antenna wiretap channel, perfect channel state information to the intended receiver as well as the passive eavesdropper are assumed. In this work, the transmitter has only partial information about the channel to the eavesdropper, but full information on the main channel to the intended receiver. The applied channel model is the flat-fading multiple-input single-output wiretap channel. We minimize the outage probability of secure transmission under single-stream beamforming. Additionally, we derive a suboptimal beamforming scheme based on a Markov bound, which performs reasonably well. The results generalize the cases with perfect as well as without channel state information of the eavesdropper channel. Numerical simulations illustrate the secrecy outage probability over the degree of channel knowledge and confirm the theoretical results.
A practical uncoordinated cooperative jamming (UCJ) scheme with multiple single-antenna helpers is proposed in this paper to enhance the physical layer security of single-input-multiple-output (SIMO) wiretap channel. In the scheme, both the intended receiver and the eavesdropper are equipped with multiple antennas and apply the minimum mean-square error (MMSE) combiner. The multiple uncoordinated single-antenna helpers transmit jamming signals independently to confound the eavesdropper, and we focus on power allocation for the helpers to solve the secrecy rate maximization (SRM) problem. Assuming that the statistical channel state information (CSI) concerning the eavesdropper is available, a convex conservative secrecy outage probability (SOP) constraint is derived and then used to solve the SRM problem with DC (difference of convex function) programming method. Furthermore, a bisection-like refinement method is provided to find a quality solution of the SRM problem with the original SOP constraint. Numerical results show that the proposed scheme has good secrecy performance especially when the number of helpers is large.