Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/215995
Title: Secrecy performance analysis of SIMO underlay cognitive radio systems with outdated CSI
Authors: Hongjiang Lei;Jianming Zhang;Ki-Hong Park;Imran Shafique Ansari;Gaofeng Pan;Mohamed-Slim Alouini
Year: 2017
Publisher: IET
Abstract: This study investigates the secrecy outage performance of a single-input multiple-output underlay cognitive radio network (CRN) with outdated channel state information (CSI). The confidential messages are transmitted from transmitter to the destination, while a multi-antenna eavesdropper exists. The maximal ratio combining and selection combining schemes are utilised at the receivers to improve the quality of the received signal-to-noise ratio. The exact and asymptotic closed-form expressions of secrecy outage probability are derived, and simulation results are provided to verify the authors' proposed analytical results. The results reveal that imperfect CSI of main channels deteriorates the secrecy outage performance while that of eavesdropping and interfering channels has contrary effect, and only a unity diversity order can be obtained in underlay CRNs with imperfect CSI.
URI: http://localhost/handle/Hannan/215995
volume: 11
issue: 12
More Information: 1961,
1969
Appears in Collections:2017

Files in This Item:
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8047503.pdf3.19 MBAdobe PDF
Title: Secrecy performance analysis of SIMO underlay cognitive radio systems with outdated CSI
Authors: Hongjiang Lei;Jianming Zhang;Ki-Hong Park;Imran Shafique Ansari;Gaofeng Pan;Mohamed-Slim Alouini
Year: 2017
Publisher: IET
Abstract: This study investigates the secrecy outage performance of a single-input multiple-output underlay cognitive radio network (CRN) with outdated channel state information (CSI). The confidential messages are transmitted from transmitter to the destination, while a multi-antenna eavesdropper exists. The maximal ratio combining and selection combining schemes are utilised at the receivers to improve the quality of the received signal-to-noise ratio. The exact and asymptotic closed-form expressions of secrecy outage probability are derived, and simulation results are provided to verify the authors' proposed analytical results. The results reveal that imperfect CSI of main channels deteriorates the secrecy outage performance while that of eavesdropping and interfering channels has contrary effect, and only a unity diversity order can be obtained in underlay CRNs with imperfect CSI.
URI: http://localhost/handle/Hannan/215995
volume: 11
issue: 12
More Information: 1961,
1969
Appears in Collections:2017

Files in This Item:
File SizeFormat 
8047503.pdf3.19 MBAdobe PDF
Title: Secrecy performance analysis of SIMO underlay cognitive radio systems with outdated CSI
Authors: Hongjiang Lei;Jianming Zhang;Ki-Hong Park;Imran Shafique Ansari;Gaofeng Pan;Mohamed-Slim Alouini
Year: 2017
Publisher: IET
Abstract: This study investigates the secrecy outage performance of a single-input multiple-output underlay cognitive radio network (CRN) with outdated channel state information (CSI). The confidential messages are transmitted from transmitter to the destination, while a multi-antenna eavesdropper exists. The maximal ratio combining and selection combining schemes are utilised at the receivers to improve the quality of the received signal-to-noise ratio. The exact and asymptotic closed-form expressions of secrecy outage probability are derived, and simulation results are provided to verify the authors' proposed analytical results. The results reveal that imperfect CSI of main channels deteriorates the secrecy outage performance while that of eavesdropping and interfering channels has contrary effect, and only a unity diversity order can be obtained in underlay CRNs with imperfect CSI.
URI: http://localhost/handle/Hannan/215995
volume: 11
issue: 12
More Information: 1961,
1969
Appears in Collections:2017

Files in This Item:
File SizeFormat 
8047503.pdf3.19 MBAdobe PDF