Secure communications via sending artificial noise by both transmitter and receiver: optimum power allocation to minimise the insecure region. Issue 16 (1st November 2014)

• Record Type: Journal Article
• Authors: Li, Wei; Tang, Yanqun; Ghogho, Mounir; Wei, Jibo; Xiong, Chunlin
• Is Part Of: IET communications. Volume 8:Issue 16(2014)
• Page Start: 2858
• Page End: 2862
• Publication Date: 2014-11-01
• Subjects: telecommunication security -- wireless channels -- radio receivers -- radio transmitters; secure communications -- sending artificial noise -- transmitter -- receiver -- optimum power allocation -- insecure region -- wireless communication -- geometrical perspective -- eavesdropper channel -- secret message -- optimum power allocation strategy -- information bearing signal; Telecommunication systems -- Periodicals; Speech processing systems -- Periodicals; 621.38205
• DOI: 10.1049/iet-com.2014.0301
• Languages: English
• ISSNs: 1751-8628

Abstract

Abstract : A novel approach for ensuring confidential wireless communication is proposed and analysed from a geometrical perspective. In this method, both the legitimate receiver and transmitter generate artificial noise (AN) to impair the eavesdropper's channel. The authors use the concept of insecure region to characterise the security performance when the eavesdropper's channel is unknown. The insecure region is defined as the region where the eavesdropper may decode the secret message. With the aim of minimising the size of the insecure region, an optimum power allocation strategy between the information bearing signal and the AN is proposed. Simulation results show that the proposed method achieves a good performance.