Reference : Secrecy sum-rate for orthogonal random beamforming with opportunistic scheduling
Scientific journals : Article
Engineering, computing & technology : Computer science
http://hdl.handle.net/10993/14903
Secrecy sum-rate for orthogonal random beamforming with opportunistic scheduling
English
Krikidis, Ioannis []
Ottersten, Björn mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
2013
IEEE Signal Processing Letters
IEEE
2
20
141-144
Yes (verified by ORBilu)
International
1070-9908
[en] In this letter, we employ orthogonal random beamforming (ORBF) for the worst-case multi-user downlink scenario where each user is wiretapped by one eavesdropper. Two opportunistic scheduling techniques that ensure confidentiality by exploiting multi-user diversity are investigated; the first technique (optimal) requires limited feedback of the effective signal-to-interference ratio (SIR) from all the users and the eavesdroppers while the second technique (suboptimal) incorporates SIR knowledge from only the legitimate users. By using extreme value theory, we derive the achievable SIR-based secrecy sum-rate and the associated scaling laws for both scheduling techniques.
Researchers ; Professionals ; Students ; Others
http://hdl.handle.net/10993/14903
10.1109/LSP.2012.2234109

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