Paper Info
Title
Multi-Antenna Transmission With Artificial Noise Against Randomly Distributed Eavesdroppers
Abstract
In this paper, we study the secure multi-antenna transmission with artificial noise (AN) under slow fading channels coexisting with randomly located eavesdroppers. We provide a comprehensive secrecy performance analysis and system design/optimization under a stochastic geometry framework. Specifically, we first evaluate the secrecy outage performance, and derive a closed-form expression for the optimal power allocation ratio of the information signal power to the total transmit power that minimizes the secrecy outage probability (SOP). Subject to a SOP constraint, we then propose a dynamic parameter transmission scheme (DPTS) and a static parameter transmission scheme (SPTS) to maximize secrecy throughput, and provide explicit solutions on the optimal transmission parameters, including the wiretap code rates, the on-off transmission threshold and the power allocation ratio. Our results give new insight into secure transmission designs. For example, secrecy rate is a concave function of the power allocation ratio in DPTS, and AN plays a significant role under SOP constraints and in dense eavesdropper scenarios. In SPTS, transmission probability is a concave function of the power allocation ratio, and secrecy throughput is a quasi-concave function of the secrecy rate. Numerical results are demonstrated to validate our theoretical analysis.
Year
DOI
Venue
2015
10.1109/TCOMM.2015.2474390
IEEE Trans. Communications
Keywords
Field
DocType
Resource management,Throughput,Fading,Optimization,Signal to noise ratio,Stochastic processes
Stochastic geometry,Transmitter power output,Secure transmission,Computer science,Fading,Signal-to-noise ratio,Communication channel,Electronic engineering,Artificial noise,Throughput
Journal
Volume
Issue
ISSN
63
11
0090-6778
Citations 
PageRank 
References 
58
1.36
36
Authors
5
Name
Order
Citations
PageRank
Tongxing Zheng132920.94
Huiming Wang21665103.97
Jinhong Yuan32966202.61
Don Towsley4186931951.05
Moon Ho Lee5765107.66