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International Conference on Computational and Information Sciences

Research on the Security of MISO Wireless Channel with Artificial Noise

Xiao Chen, Fangbiao Li, Zhi Xue, Yan Mei Zhu, Xinxing Yin, Yongkai Zhou, Liang Pang

Published Jun 1, 2013• 6 citations
Publisher

Abstract

Security is an important issue in the field of wireless communication. In this paper, the security problem of Multiple-inputs Single-output (MISO) wireless channel is considered. To ensure the security of communication, the transmitter utilizes some of the available power to produce 'artificial noise' that only degrades the eavesdropper's channel. But the artificial noise may be invalid possibly due to the inherent security weakness. We research the vulnerability of the MISO wireless channel with artificial noise (MISOAN) through vector analysis. Then a Blind Space Elimination (BSE) scheme is proposed and proved to fix the design flaw in order to strengthen the original one.

DOI
10.1109/iccis.2013.403

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Security is an important issue in the field of wireless communication. In this paper, the security problem of Multiple-inputs Single-output (MISO) wireless channel is considered. To ensure the security of communication, the transmitter utilizes some of the available power to produce 'artificial noise' that only degrades the eavesdropper's channel. But the artificial noise may be invalid possibly due to the inherent security weakness. We research the vulnerability of the MISO wireless channel with artificial noise (MISOAN) through vector analysis. Then a Blind Space Elimination (BSE) scheme is proposed and proved to fix the design flaw in order to strengthen the original one.
The security problem of Gaussian MIMO (multipleinputs multiple-outputs) channel is considered where a transmitter is communicating to a receiver in the presence of an eavesdropper.All the nodes are equipped with multiple antennas.Through utilizing some of the available power to produce 'artificial noise' that only degrades the eavesdropper's channel, the transmitter ensures the security of communication.However, the artificial noise could be void possibly due to the inherent security weakness.In this paper, the vulnerability of the MIMO wireless channel with artificial noise (MIMOAN) through matrix analysis is researched.Then a Matrix Blind Space Elimination (MBSE) scheme is proposed and proved to fix the design flaw in order to strengthen the original one.
Security is an important issue in the field of wireless channel. In this paper, the security problem of Gaussian MIMO wireless hybrid channel is considered where a transmitter with multiple antennas sends information to an intended receiver with one antenna in the presence of an eavesdropper with multiple antennas. Through utilizing some of the power to produce `artificial noise', the transmitter can only degrade the eavesdropper's channel to ensure the security of the communication. But there is an inherent weakness in this scheme. Then a Hybrid Blind Space Elimination (HBSE) scheme is proposed and proved to fix the design flaw in order to strengthen the original scheme.
Security is an important issue in the field of wireless communication. In this paper, the security problem of Single-input Single-output Multiple-helpers (SISOMH) wireless channel is considered. The SISOMH wireless channel, where artificial noise is utilized, is designed to prevent eavesdropping. But the artificial noise may be invalid due to the inherent security weakness. We point out that the SISOMH scheme is not safe through by matrix analysis. Then, a Helper Transmission Parameter Optimization (HTPO) scheme is proposed to fix the flow.
Matters involved with security are those fatal matters in wireless communication field. In this paper, the security problem of SISOMR (single input single output with multiple relay-nodes) wireless channel is analyzed and solved in detail. The SISOMR wireless channel with artificial noise is designed to prevent eavesdropping. However, the artificial noise may be invalid probably due to the inherent security weakness. The SISOMR scheme is not safe through our matrix analysis. Therefore, a Relay-nodes Transmission Parameter Optimization (RTPO) scheme is proposed to fix the design flow in order to enhance the original one. Finally, the secrecy capacity of RTPO-SISOMR is introduced.
The problem we consider is the security communication in MISO (Multiple-input Single-output) scenario. The scenario is connected via wireless signal between two points: the transmitter and the receiver. We assume that transmitter has multiple antennas while receiver has one. In recent papers, they assume that the useful information can be received by the indeed receiver completely but not the eavesdropper. In this paper we take the identity of active attacker to superimpose the attack signal which uses high power all-directional antennas to inject on the original signal. We do the analysis and research on the defect of MISO wireless channel with the mutual information as the mathematical description quantity. This Paper elicits and defines the concept of wireless channel information loss rate. In the end, the MISO security communication solutions against the active attack are given using null space connection technology.
Physical layer security has recently emerged as a promising approach to provide secure wireless communications. Physical layer security technology is the key means to achieve security and communication integration. The built-in security mechanism based on the characteristics of wireless channel provides a feasible idea for the realization of “one secret at a time”. It has important application prospects in integrity protection of service data, Internet of things (IoT) lightweight encryption and blockchain wireless security technology. In this paper, we consider the scenario of a unicast multiuser multiple-input single-output (MISO) downlink system in the presence of multiple single-antenna passive eavesdroppers. Instead of assuming perfect channel state information (CSI), we investigate the artificial noise (AN)-aided robust transmit beamforming scheme with imperfect CSI on legitimate receivers and no CSI regarding eavesdroppers at the transmitter. Under the fixed total transmit power, the information symbol and the AN are transmitted concurrently. We aim to guarantee each legitimate receiver's signal-to-interference-and-noise ratio(SINR) outage probability below a preset level with minimum power. Hence, as much power as possible can be allocated to AN to confuse the eavesdroppers. In order to reduce the negative impact on the legitimate receivers, the AN is transmitted in the null space of the estimated legitimate channels. To deal with this nonconvex optimization problem, a rank relaxed formulation is obtained by employing semidefinite relaxation (SDR). Then we propose two approaches by using Bernstein-type inequality and S-procedure, respectively, to transform the probabilistic constraints into deterministic constraints. The optimization problem is reformulated as a convex semidefinite program (SDP). Simulation results show that the proposed approaches have better performances than the non-robust approach.