Wireless Physical-Layer Security: The Case of Colluding Eavesdroppers

被引：46
|
作者：
Pinto, Pedro C. [1 ]
Barros, Joao [2 ]
Win, Moe Z. [1 ]
机构：
[1] MIT, Lab Informat & Decis Syst, Room 32-D674,77 Massachusetts Ave, Cambridge, MA 02139 USA
[2] Univ Porto, Fac Engn, Inst Telecommun, Dept Elect & Comp Engn, P-4100 Porto, Portugal
来源：
2009 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, VOLS 1- 4 | 2009年
关键词：
Information-theoretic security; wireless channels; secrecy capacity; colluding eavesdroppers; stochastic geometry; NETWORKS;
D O I：
10.1109/ISIT.2009.5206050
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We consider the fundamental security limits of stochastic wireless networks in the presence of colluding eavesdroppers. By establishing a direct connection with the single-input multiple-output (SIMO) Gaussian wiretap channel, we are able to provide a complete characterization of the secrecy capacity for the case in which the eavesdroppers are scattered according to a spatial Poisson process. Our analysis, which includes the probabilities of existence and outage of secrecy capacity, helps clarify how the spatial density of eavesdroppers can jeopardize the success of wireless physical-layer security based on information-theoretic principles.
引用
收藏
页码：2442 / +
页数：2
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