Title :
Secrecy signal and artificial noise designs in cellular network
Author :
Hui-Ming Wang ; Feng Liu
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
In this paper, we propose a new method of secrecy signal and artificial noise (AN) transmission for a MISO wiretap channel in wireless cellular networks. We first design the secrecy signal beamformer such that its power leakage to the unintended directions is minimized, then we concentrate the AN on the directions with higher risk of information leakage, rather than broadcast it isotropically, such that the transmission secrecy can be guaranteed while the interference of AN to users in the adjacent cells is greatly reduced. The simulation results verify the proposed scheme.
Keywords :
array signal processing; cellular radio; radiofrequency interference; telecommunication security; AN transmission; MISO wiretap channel; artificial noise designs; information leakage; power leakage; secrecy signal beamformer; transmission secrecy; wireless cellular networks; Approximation methods; Communication system security; Interference; Noise; Resource management; Simulation; Wireless communication; Physical layer security; artificial noise; beamformer; cellular network; optimization;
Conference_Titel :
Signal and Information Processing (ChinaSIP), 2015 IEEE China Summit and International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/ChinaSIP.2015.7230406
