Results 51 to 60 of about 1,176,752 (196)

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

Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel

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, Qian Huang, Xuemei Chen, Lu Sun   +3 more
doaj   +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

On the Physical Layer Security Peculiarities of Wireless Communications in the Presence of the Beaulieu-Xie Shadowed Fading

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, Tatiana K. Artemova   +1 more
doaj   +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, Tam Ninh Thi-Thanh, Chi Nguyen-Yen, Hung Tran, Nguyen Dinh Viet, Van Nhan Vo 0001   +5 more
openaire   +2 more sources

On the secrecy performance of RIS-enabled wireless communications over Nakagami-m fading channels

ICT Express, 2023
This paper examines the secrecy performance of reconfigurable intelligent surface aided wireless communication systems. Specifically, we derive the secrecy outage probability (SOP), intercept probability, probability of non-zero secrecy capacity, and ...
Ashutosh K. Yadav, Suneel Yadav, Anshul Pandey, Adão Silva   +3 more
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

On the Analysis of Secrecy Outage Probability Using Average Channel Capacity

Sakarya University Journal of Science, 2020
In this article, we analyze the outage probability of physically secure wireless signal transmission in fading envi-ronments where both primary and eavesdropper channels are subject to generalized fading. We propose a novel approach using the average channel capacity of the primary channel and that of the eavesdropper channel to the outage probability ...
openaire   +5 more sources

Secrecy outage probability analysis of energy‐aware relay selection for energy‐harvesting cooperative systems

IET Communications, 2022
The secrecy outage performance for a cooperative cognitive radio energy‐harvesting network is analyzed. The cognitive network is composed of an energy‐constrained cognitive source (CS), multiple energy‐constrained cognitive relays (CRs) and a cognitive ...
Yujie Zhang, Peng Li, Weibei Fan, Ruchuan Wang   +3 more
doaj   +1 more source