Reference : Power Allocation for Energy-Constrained Cognitive Radios in the Presence of an Eavesd...
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/10993/18946
Power Allocation for Energy-Constrained Cognitive Radios in the Presence of an Eavesdropper
English
Maleki, Sina mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Kalantari, Ashkan [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Chatzinotas, Symeon [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
May-2014
2014 IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP)
Yes
International
2014 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
4-9 May 2014
IEEE
Florence
Italy
[en] Cognitive radio ; Energy-Efficiency ; Spectrum Sensing ; Power Allocation ; Eavesdropper ; Secrecy Rate ; Physical Layer Security
[en] Reliable and agile spectrum sensing as well as secure communication are key requirements of a cognitive radio system. In this paper, secrecy throughput of a cognitive radio is maximized in order to determine the sensing threshold, the sensing time, and the transmission power. Constraints of the problem are defined as a lower-bound on the detection probability, an upper-bound on the average energy consumption per time-frame, and the maximum transmission power of the cognitive radio. We show that the problem can be solved by an on-off strategy where the cognitive radio only performs sensing and transmits data if the cognitive channel gain is greater than the average eavesdropper channel gain. The problem is then solved by a line-search over sensing time. Eventually, the secrecy throughput of the cognitive radio is evaluated employing the IEEE 802.15.4/ZigBee standard.
http://hdl.handle.net/10993/18946

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
ICASSP2014_CameraFinal.pdfAuthor postprint171.03 kBView/Open

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.