Jammer Assisted Covert Communication with Cognitive Radio - Details

author：

Li, Hongwei (Li, Hongwei.) ^[1] | Hu, Jinsong (Hu, Jinsong.) ^[2] (Scholars：胡锦松) | Chen, Youjia (Chen, Youjia.) ^[3] (Scholars：陈由甲) | Wang, Jun (Wang, Jun.) ^[4] (Scholars：王俊) | Shu, Feng (Shu, Feng.) ^[5]

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Abstract：

This　work　proposes　a　covert　communication　scheme　in　a　cognitive　radio　network　where　a　secondary　transmitter　(ST)　transmits　confidential　information　to　a　secondary　receiver　under　the　protection　of　a　jammer.　Specifically,　we　first　analyzed　the　communication　performance　of　the　system　under　both　correct　and　incorrect　decisions　of　ST.　We　then　derive　the　average　minimum　detection　error　probability　under　the　two　decisions　of　ST　and　obtain　the　global　average　minimum　detection　error　probability　as　the　covertness　constraint.　To　maximize　the　average　effective　covert　rate,　we　jointly　optimize　the　transmission　power　of　ST　and　the　maximum　transmission　power　of　the　jammer　while　satisfying　constraints.　Our　examination　shows　that　the　proposed　scheme　can　effectively　improve　the　covert　performance　and　the　average　effective　covert　rate　of　the　system　compared　to　the　no-jammer　scheme.　©　2023　IEEE.

Keyword：

Cognitive radio Error detection Jamming Radio transmission

Community：

[ 1 ] [Li, Hongwei]Fuzhou University, College of Physics and Information Engineering, Fuzhou, China
[ 2 ] [Hu, Jinsong]Fuzhou University, College of Physics and Information Engineering, Fuzhou, China
[ 3 ] [Chen, Youjia]Fuzhou University, College of Physics and Information Engineering, Fuzhou, China
[ 4 ] [Wang, Jun]Fuzhou University, College of Electrical Engineering and Automation, Fuzhou, China
[ 5 ] [Shu, Feng]Hainan University, School of Information and Communication Engineering, Haikou, China