The MISO wiretap channel with channel uncertainty: Asymptotic perspectives

Handle URI:
http://hdl.handle.net/10754/623754
Title:
The MISO wiretap channel with channel uncertainty: Asymptotic perspectives
Authors:
Chaaban, Anas ( 0000-0002-8713-5084 ) ; Rezki, Zouheir; Alomair, Basel; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
The N-antenna MISO Gaussian wiretap channel with imperfect channel-state information at the transmitter (CSIT) is studied in terms of secrecy rate scaling versus the signal-to-noise ratio (SNR) and N. Two schemes are considered, beamforming (BF) and artificial noise injection (AN). It is shown that if the CSIT error is independent of SNR, then both schemes do not achieve scaling versus SNR. However, if this error vanishes as SNR increases, then AN achieves the optimal scaling versus SNR, contrary to BF. Scaling can be achieved in BF by increasing N. In fact, BF achieves the optimal scaling versus N. In the AN scheme however, injecting noise in multiple direction deteriorates its scaling versus N. Nevertheless, AN can achieve the optimal scaling if noise is sent in only one direction. This leads to better performance than BF if the CSIT error is smaller than a threshold which is also derived.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Chaaban A, Rezki Z, Alomair B, Alouini M-S (2016) The MISO wiretap channel with channel uncertainty: Asymptotic perspectives. 2016 IEEE Global Conference on Signal and Information Processing (GlobalSIP). Available: http://dx.doi.org/10.1109/GlobalSIP.2016.7905984.
Publisher:
IEEE
Journal:
2016 IEEE Global Conference on Signal and Information Processing (GlobalSIP)
Conference/Event name:
2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016
Issue Date:
12-May-2017
DOI:
10.1109/GlobalSIP.2016.7905984
Type:
Conference Paper
Additional Links:
http://ieeexplore.ieee.org/document/7905984/
Appears in Collections:
Conference Papers; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorChaaban, Anasen
dc.contributor.authorRezki, Zouheiren
dc.contributor.authorAlomair, Baselen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2017-05-31T09:53:12Z-
dc.date.available2017-05-31T09:53:12Z-
dc.date.issued2017-05-12en
dc.identifier.citationChaaban A, Rezki Z, Alomair B, Alouini M-S (2016) The MISO wiretap channel with channel uncertainty: Asymptotic perspectives. 2016 IEEE Global Conference on Signal and Information Processing (GlobalSIP). Available: http://dx.doi.org/10.1109/GlobalSIP.2016.7905984.en
dc.identifier.doi10.1109/GlobalSIP.2016.7905984en
dc.identifier.urihttp://hdl.handle.net/10754/623754-
dc.description.abstractThe N-antenna MISO Gaussian wiretap channel with imperfect channel-state information at the transmitter (CSIT) is studied in terms of secrecy rate scaling versus the signal-to-noise ratio (SNR) and N. Two schemes are considered, beamforming (BF) and artificial noise injection (AN). It is shown that if the CSIT error is independent of SNR, then both schemes do not achieve scaling versus SNR. However, if this error vanishes as SNR increases, then AN achieves the optimal scaling versus SNR, contrary to BF. Scaling can be achieved in BF by increasing N. In fact, BF achieves the optimal scaling versus N. In the AN scheme however, injecting noise in multiple direction deteriorates its scaling versus N. Nevertheless, AN can achieve the optimal scaling if noise is sent in only one direction. This leads to better performance than BF if the CSIT error is smaller than a threshold which is also derived.en
dc.publisherIEEEen
dc.relation.urlhttp://ieeexplore.ieee.org/document/7905984/en
dc.rights(c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.en
dc.subjectArray signal processingen
dc.subjectFading channelsen
dc.subjectMISOen
dc.subjectReceiversen
dc.subjectSignal to noise ratioen
dc.subjectTransmittersen
dc.subjectUpper bounden
dc.titleThe MISO wiretap channel with channel uncertainty: Asymptotic perspectivesen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journal2016 IEEE Global Conference on Signal and Information Processing (GlobalSIP)en
dc.conference.date2016-12-07 to 2016-12-09en
dc.conference.name2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016en
dc.conference.locationWashington, DC, USAen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, University of Idaho, Moscow, ID, USAen
dc.contributor.institutionKing Abdulaziz City for Science and Technology, The National Center for Cybersecurity Technology (C4C), Riyadh, Saudi Arabiaen
kaust.authorChaaban, Anasen
kaust.authorAlouini, Mohamed-Slimen
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