NDLI: Multi-Antenna Transmission With Artificial Noise Against Randomly Distributed Eavesdroppers

Content Provider	IEEE Xplore Digital Library
Author	Tong-Xing Zheng Hui-Ming Wang Jinhong Yuan Towsley, D. Moon Ho Lee
Copyright Year	1972
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.
Starting Page	4347
Ending Page	4362
Page Count	16
File Size	1493527
File Format	PDF
ISSN	00906778
Volume Number	63
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resource management Throughput Fading Optimization Signal to noise ratio Stochastic processes optimization Physical layer security multi-antenna artificial noise power allocation stochastic geometry secrecy outage secrecy throughput
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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