Cross-Layer Security in Two-Hop Wireless Gaussian Relay Network with Untrusted Relays

被引:0
作者
Kaliszan, Michal [1 ]
Mohammadi, Jafar [1 ]
Stanczak, Slawomir [1 ]
机构
[1] Tech Univ Berlin, Heinrich Hertz Lehrstuhl Informationstheorie & Th, D-10587 Berlin, Germany
来源
2013 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2013年
关键词
Untrusted relays; cross-layer security; transmit beamforming;
D O I
暂无
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
This paper deals with the challenge of providing information-theoretic secrecy in a two-hop wireless channel with multiple untrusted relay nodes. Instead of perfect secrecy (in the information-theoretic sense), of interest here is a cross-layer approach where only parts of relayed information are protected at the physical layer against eavesdropping at relay nodes. For both decode-and-forward and amplify-and-forward relaying strategies, we present a novel framework for designing secrecy schemes for two-hop relay channels that ensure some pre-defined level of partial secrecy. The paper is concluded by some numerical simulations to show the interplay between different system parameters such as the the rate, secrecy factor, the number of relays and antennas.
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页数:6
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