Results 31 to 40 of about 4,724 (196)
Joint 3D Beamforming and Trajectory Design for UAV-Enabled Mobile Relaying System
IEEE Access, 2019 The goal of this paper is to investigate the security performance of the multi-antenna unmanned aerial vehicle (UAV)-enabled mobile relaying system with a multi-antenna destination in the presence of a multi-antenna eavesdropper.
Quansheng Yuan +3 more
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Physical-Layer Security Enhancement via Relay-Aided D2D Communications Underlaying Cellular Networks
IEEE Open Journal of the Communications Society, 2020 In this paper, we propose a relay-assisted device-to-device (D2D) communication as an underlay in a cellular network, where two sequential best relay nodes based on different selection criteria are chosen.
Jules M. Moualeu, Telex M. N. Ngatched
doaj +1 more source
Robust Power Allocation and Outage Analysis for Secrecy in Independent Parallel Gaussian Channels
, 2015 This letter studies parallel independent Gaussian channels with uncertain eavesdropper channel state information (CSI). Firstly, we evaluate the probability of zero secrecy rate in this system for (i) given instantaneous channel conditions and (ii) a ...
Kandhway, Kundan +2 more
core +1 more source
Secrecy Outage Probability and Fairness of Packet Transmission Time in a NOMA System [PDF]
IEEE Access, 2020 في هذه الورقة، نقوم بتحليل احتمالية انقطاع السرية (SOP) ونزاهة متوسط وقت نقل الحزمة لنظام الوصول المتعدد غير المتعامد (NOMA) الذي يتكون من محطة قاعدة (BS) واثنين من مستخدمي NOMA القانونيين في وجود جهاز تنصت (EVE). من أجل استخراج الإشارة المتراكبة، يتم اعتبار EVE في وضعين، أي وضع إلغاء التداخل المتتالي (SIC) ووضع إلغاء التداخل المتوازي (PIC). وفقًا لذلك،
Tung Pham Huu +5 more
openaire +2 more sources
IEEE Photonics Journal, 2019 In this paper, optical code division multiple access (OCDMA) based hybrid free-space optical (FSO)/fiber wiretap channel is proposed, and the physical-layer security is analyzed theoretically, using the conditional secrecy outage probability as ...
Jianhua Ji +3 more
doaj +1 more source
Mathematics, 2022 The article presents an analysis of the physical layer security of a wireless communication system functioning in the presence of multipath fading and a wiretap.
Aleksey S. Gvozdarev +1 more
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Location-Based Beamforming and Physical Layer Security in Rician Wiretap Channels
, 2016 We propose a new location-based beamforming (LBB) scheme for wiretap channels, where a multi-antenna source communicates with a single-antenna legitimate receiver in the presence of a multi-antenna eavesdropper.
Liu, Chenxi, Malaney, Robert
core +1 more source
Cooperative Transmission for Security Enhancement in Clustered Wireless Sensor Networks
International Journal of Distributed Sensor Networks, 2015 We study opportunistic decode-and-forward relaying transmission in cooperative cluster-based wireless sensor networks (WSNs) with secrecy constraints, where a passive eavesdropper may overhear the source message.
Weiwei Yang, Songqing Wang, Xiaoming Xu
doaj +1 more source
Secrecy outage of threshold-based cooperative relay network with and without direct links
EURASIP Journal on Information Security, 2018 In this paper, we investigate the secrecy outage performance of a dual-hop decode-and-forward (DF) threshold-based cooperative relay network, both with and without the direct links between source-eavesdropper and source-destination. Without assuming that
Khyati Chopra, Ranjan Bose, Anupam Joshi
doaj +1 more source
Physical Layer Security Enhancement of Space-Time Block Code Using Channel Prediction for Antenna Selection [PDF]
Jisuanji gongcheng, 2020 Aiming at Transmit Antenna Selection with Delay(TASD)/Orthogonal Space-Time Block Code(OSTBC) wireless communication system,this paper proposes a system physical layer security enhancement scheme based on the Minimum Mean Square Error(MMSE) channel ...
QIAN Hui, LI Guangqiu, WANG Lingbo, CAI Jianhui
doaj +1 more source