NDLI: Cooperative jamming protocols in two hop amplify-and-forward wiretap channels

Content Provider	IEEE Xplore Digital Library
Author	Dong Fang Nan Yang Elkashlan, M. Phee Lep Yeoh Jinhong Yuan
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Parkville, VIC, Australia (Phee Lep Yeoh) \|\| Sch. of Electron. Eng. & Comput. Sci., Univ. of London, London, UK (Elkashlan, M.) \|\| Dept. of Electron., Univ. of York, York, UK (Dong Fang) \|\| Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia (Nan Yang; Jinhong Yuan)
Abstract	In this paper, we propose two cooperative jamming protocols in two-hop amplify-and-forward (AF) wiretap channels: 1) jamming signal at the source (JSS) and 2) jamming signal at the relay (JSR). We apply optimal power allocation (OPA) between the useful signal and the jamming signal to maximize the secrecy rate for each of the protocols. A fundamental question to address is “Which cooperative jamming protocol is superior under OPA?” To this end, we evaluate the maximum secrecy rate of JSS and JSR for the general scenario of independent but not necessarily identically distributed fading with distinct average signal-to-noise ratios (SNRs) in the first hop, the second hop, and the wiretap link. We demonstrate that the strong first and second hops equally benefit the secrecy rates of JSS and JSR, when the wiretap link is weak. When the wiretap link is strong, the secrecy rate of JSR is superior to JSS.
Starting Page	2188
Ending Page	2192
File Size	140196
Page Count	5
File Format	PDF
ISBN	9781467331227
ISSN	15503607
DOI	10.1109/ICC.2013.6654852
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-09
Publisher Place	Hungary
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Jamming Protocols Relays Signal to noise ratio Resource management Interference Linear programming
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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