supported by the National Natural Science Foundation of China with Grants 62301076 and 62321001。
Physical layer security methods based on joint relay and jammer selection(JRJS)have been widely investigated in the study of secure wireless communications.Different from current works on JRJS schemes,which assumed th...
supported in part by the National Natural Science Foundation for Distinguished Young Scholar 61825104;in part by the National Natural Science Foundation of China under Grant 62201582;in part by the National Nature Science Foundation of China under Grants 62101450;in part by the Key R&D Plan of Shaan Xi Province Grants 2023YBGY037;in part by National Key R&D Program of China(2022YFC3301300);in part by the Natural Science Basic Research Program of Shaanxi under Grant 2022JQ-632;in part by Innovative Cultivation Project of School of Information and Communication of National University of Defense Technology under Grant YJKT-ZD-2202。
In this paper,we study the covert performance of the downlink low earth orbit(LEO)satellite communication,where the unmanned aerial vehicle(UAV)is employed as a cooperative jammer.To maximize the covert rate of the LE...
supported in part by the National Natural Science Foundation of China(No.61941105,No.61901327 and No.62101450);in part by the National Natural Science Foundation for Distinguished Young Scholar(No.61825104);in part by the Fundamental Research Funds for the Central Universities(JB210109);in part by the Foundation of State Key Laboratory of Integrated Services Networks of Xidian University(ISN22-03)。
In this work,we investigate the covert communication in cognitive radio(CR)networks with the existence of multiple cognitive jammers(CJs).Specifically,the secondary transmitter(ST)helps the primary transmitter(PT)to r...
supported in part by the National Natural Science Foundation of China under Grant 62271268,Grant 62071253,and Grant 62371252;in part by the Jiangsu Provincial Key Research and Development Program under Grant BE2022800;in part by the Jiangsu Provincial 333 Talent Project。
In this paper,we explore a cooperative decode-and-forward(DF)relay network comprised of a source,a relay,and a destination in the presence of an eavesdropper.To improve physical-layer security of the relay system,we p...
partially supported by the National Natural Science Foundation of China under Grant No.62172080;the Natural Science Foundation of Sichuan Province under Grants 2023NSFSC0478;the National Key R&D Program of China No.2022YFB3103404
Jamming attacks and unintentional radio interference are some of the most urgent threats harming the dependability of wireless communication and endangering the successful deployment of pervasive applications built on...
supported by the Nature Science Foundation of China (61873106);the Nature Science Foundation of Jiangsu Province for Distinguished Young Scholars (BK20200049);Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX21_3142)。
Dear Editor, This letter is concerning friendly jamming unmanned aerial vehicles(UAVs) to assist in the safe communication of UAV base stations. Due to the openness of UAV wireless communication, it is vulnerable to a...
supported by the Projects of the Natural Science Foundation of Qinghai Province(2021-ZJ-916);the National Natural Science Foundation of China(62202274).
The widely used devices(e.g.smartphones,recorders)equipped with microphones have posed a severe threat to confidential conversations.In this paper,we design an inaudible anti-eavesdropping method:UltraJam,to reduce th...
supported by the National Natural Science Foundation of China under Grant(no.62071486,no.61771487,no.62171464).
In this paper,we investigate covert communications in data collected IoT with NOMA,where the paired sensor nodes S_(m) and S_(n) transmit covert messages to a legitimate receiver(Bob)in the presence of a Warden(Willie...
In this paper,a communication model in cognitive radios is developed and uses machine learning to learn the dynamics of jamming attacks in cognitive radios.It is designed further to make their transmission decision th...
Interference is a key factor in radar return misdetection.Strong interference might make it difficult to detect the signal or targets.When interference occurs in the sidelobes of the antenna pattern,Sidelobe Cancellat...