Results 11 to 20 of about 754 (214)

Physical Layer Security of Dual-Hop Hybrid FSO-mmWave Systems

IEEE Access, 2023
Hybrid free-space optical (FSO) and millimeter wave (mmWave) systems have been proposed as an efficient solution to improve spectral efficiency and maintain link reliability.
Saud Althunibat, Sezer C. Tokgoz, Serhan Yarkan, Scott L. Miller, Khalid A. Qaraqe   +4 more
doaj   +1 more source

RIS-Aided Mixed RF-FSO Wireless Networks: Secrecy Performance Analysis With Simultaneous Eavesdropping

IEEE Access, 2023
In order to meet the demands of diverse services within sixth-generation networks across a range of industries, numerous approaches are being employed to address notable signal degradation resulting from channel obstruction, particularly in the realms of
Md. Mijanur Rahman, A. S. M. Badrudduza, Noor Ahmad Sarker, Md. Ibrahim, Imran Shafique Ansari, Heejung Yu   +5 more
doaj   +1 more source

Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers

IEEE Photonics Journal, 2022
In this paper, the physical layer security (PLS) analysis for a decode-and-forward (DF) protocol based multi-hop hybrid radio frequency (RF)/ free space optics (FSO) is presented.
Dipti R. Pattanayak, Vivek K. Dwivedi, Vikram Karwal, Pankaj K. Yadav, G. Singh   +4 more
doaj   +1 more source

Secure Transmission of Cooperative Zero-Forcing Jamming for Two-User SWIPT Sensor Networks

Sensors, 2018
In this paper, the secrecy performance of the two-user simultaneous wireless information and power transfer (SWIPT) sensor networks is studied and a novel secure transmission scheme of cooperative zero-forcing (ZF) jamming is proposed.
Xuanxuan Tang, Yueming Cai, Wendong Yang, Weiwei Yang, Dechuan Chen, Junquan Hu   +5 more
doaj   +1 more source

Rate Adaption for Secure HARQ-CC System with Multiple Eavesdroppers

Entropy, 2020
In this paper, we studied the secure transmission of a hybrid automatic repeat request with chase combining (HARQ-CC) system, under the existence of multiple eavesdroppers and limited latency.
Yue Wu, Shishu Yin, Jian Zhou, Pei Yang, Hongwen Yang   +4 more
doaj   +1 more source

Secure Multiuser Communications in Wireless Sensor Networks with TAS and Cooperative Jamming

Sensors, 2016
In this paper, we investigate the secure transmission in wireless sensor networks (WSNs) consisting of one multiple-antenna base station (BS), multiple single-antenna legitimate users, one single-antenna eavesdropper and one multiple-antenna cooperative ...
Maoqiang Yang, Bangning Zhang, Yuzhen Huang, Nan Yang, Daoxing Guo, Bin Gao   +5 more
doaj   +1 more source

Enhancing Physical Layer Security of DF Buffer-Aided Relay Networks With Small Buffer Sizes

IEEE Access, 2019
In this paper, we propose a novel max-weight secure link selection (MWSLS) scheme to enhance physical layer security of decode-and-forward (DF) buffer-aided relay networks. The MWSLS scheme can select the link with the largest weight among all secure and
Chen Wei, Zhifu Yin, Wendong Yang, Yueming Cai   +3 more
doaj   +1 more source

Secure Transmission for Energy Efficient Parallel Mixed FSO/RF System in Presence of Independent Eavesdroppers

IEEE Photonics Journal, 2022
In this paper, the physical layer security (PLS) challenges for a decode and forward (DF) based dual hop mixed free space optical (FSO) / radio frequency (RF) communication system in the presence of multiple eavesdroppers has been investigated.
Dipti R. Pattanayak, Vivek K. Dwivedi, Vikram Karwal, Abhijeet Upadhya, Hongjiang Lei, G. Singh   +5 more
doaj   +1 more source

Security–reliability tradeoff analysis of untrusted energy harvesting relay networks

International Journal of Distributed Sensor Networks, 2018
We investigate secure communications in untrusted energy harvesting relay networks, where the amplify-and-forward relay is an energy constrained node powered by the received radio frequency signals, and try to unauthorizedly decode the confidential ...
Dechuan Chen, Weiwei Yang, Jianwei Hu, Weifeng Mou, Yueming Cai   +4 more
doaj   +1 more source

Secure Transmission for Differential Quadrature Spatial Modulation With Artificial Noise

IEEE Access, 2019
In this paper, we investigate the secure transmission for differential quadrature spatial modulation (DQSM) with artificial noise (AN) in multiple-input single-output wiretap networks, where a cooperative jammer helps the secure transmission between ...
Yong Wang, Tao Zhang, Weiwei Yang, Jibin Guo, Yongxiang Liu, Xiaohui Shang   +5 more
doaj   +1 more source