Non-regenerative Two-Hop Wiretap Channels using Interference Neutralization

Gerbracht, Sabrina; Jorswieck, Eduard A.; Zheng, Gan; Ottersten, Björn

doi:10.1109/WIFS.2012.6412659

Reference : Non-regenerative Two-Hop Wiretap Channels using Interference Neutralization


	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Computer science Engineering, computing & technology : Electrical & electronics engineering
	To cite this reference:	http://hdl.handle.net/10993/7586

Title :	Non-regenerative Two-Hop Wiretap Channels using Interference Neutralization
Language :	English
Author, co-author :	Gerbracht, Sabrina [> >]
	Jorswieck, Eduard A. [> >]
	Zheng, Gan [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Publication date :	2012
Main document title :	Information Forensics and Security (WIFS), 2012 IEEE International Workshop on
Publisher :	IEEE
Pages :	258 - 263
Peer reviewed :	Yes
Audience :	International
ISBN :	978-1-4673-2285-0
Event name :	Information Forensics and Security (WIFS), 2012 IEEE International Workshop on
Event date :	December 2-5, 2012
Event place (city) :	Tenerife
Event country :	Spain
Abstract :	[en] In this paper, we analyze the achievable secrecy rates in the two-hop wiretap channel with four nodes, where the transmitter and the receiver have multiple antennas while the relay and the eavesdropper have only a single antenna each. The relay is operating in amplify-and-forward mode and all the channels between the nodes are known perfectly by the transmitter. We discuss different transmission and protection schemes like artificial noise (AN). Furthermore, we introduce interference neutralization (IN) as a new protection scheme. We compare the different schemes regarding the high-SNR slope and the high-SNR power offset and illustrate the performance by simulation results. It is shown analytically as well as by numerical simulations that the high SNR performance of the proposed IN scheme is better than the one of AN.
Target :	Others
Permalink :	http://hdl.handle.net/10993/7586
DOI :	10.1109/WIFS.2012.6412659

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