期刊
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
卷 12, 期 6, 页码 2776-2787出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TWC.2013.041713.120865
关键词
Physical layer security; cellular networks; stochastic geometry; location information exchange; cell association
资金
- National ICT Australia (NICTA)
- Australian Research Council [DP110102548, DP130101760]
- Australian Government, Department of Broadband, Communications and the Digital Economy
- Australian Research Council through ICT Centre of Excellence program
This paper studies the information-theoretic secrecy performance in large-scale cellular networks based on a stochastic geometry framework. The locations of both base stations and mobile users are modeled as independent two-dimensional Poisson point processes. We consider two important features of cellular networks, namely, information exchange between base stations and cell association, to characterize their impact on the achievable secrecy rate of an arbitrary downlink transmission with a certain portion of the mobile users acting as potential eavesdroppers. In particular, tractable results are presented under diverse assumptions on the availability of eavesdroppers' location information at the serving base station, which captures the benefit from the exchange of the location information between base stations.
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