Results 11 to 20 of about 1,219,015 (169)

Enhanced secrecy outage probability for multiple‐input single‐output‐VLC systems through optical beamforming and improved light emitting diodes deployment

IET Optoelectronics, 2023
The authors propose to arrange the light emitting diodes (LEDs) on the ceiling for an indoor visible light communication system in order to minimise the secrecy outage probability (SOP) at the location of the legitimate user (LU).
Mahmoud Mohammadi, Seyed Mohammad Sajad Sadough, Zabih Ghassemlooy   +2 more
doaj   +2 more sources

Secrecy Cognitive Gain of Cognitive Radio Sensor Networks with Primary Outage Constraint

International Journal of Distributed Sensor Networks, 2015
This paper studies the physical layer security issue for cognitive radio sensor networks (CRSNs) with primary outage constraint, for which a tractable framework is developed to analyze the secrecy performance for CRSNs related to the random channel ...
Hongyu Ma, Kai Niu, Weiling Wu, Shengyu Li, Guangqian Chu   +4 more
doaj   +2 more sources

A novel security‐based adaptive reconfigurable intelligent surfaces assisted clustering strategy

Electronics Letters
Reconfigurable intelligent surfaces (RISs) have attracted a great deal of interest due to the potential contributions to the next‐generation wireless networks.
Yue Tian, Xiaofan Zheng
doaj   +2 more sources

On the Zero-Outage Secrecy-Capacity of Dependent Fading Wiretap Channels. [PDF]

Entropy (Basel), 2022
It is known that for a slow fading Gaussian wiretap channel without channel state information at the transmitter and with statistically independent fading channels, the outage probability of any given target secrecy rate is non-zero, in general.
Jorswieck E, Lin PH, Besser KL.
europepmc   +2 more sources

Physical layer security of reconfigurable intelligent surface empowered wireless network with cooperative jammer [PDF]

, 2022
This paper evaluates the physical layer security performance of a reconfigurable intelligent surface (RIS) enabled wireless network in the presence of a passive eavesdropper.
Olakanmi Oladayo Olufemi, Pius Adewale Owolawi, Owolawi, Pius Adewale, Kehinde Oluwasesan Odeyemi, Olufemi, Olakanmi Oladayo, Odeyemi, Kehinde Oluwasesan   +5 more
core   +1 more source

Water, Water Everywhere, but Every Drop Unique: Challenges in the Science to Understand the Role of Contaminants of Emerging Concern in the Management of Drinking Water Supplies

GeoHealth, Volume 7, Issue 12, December 2023., 2023
Abstract The protection and management of water resources continues to be challenged by multiple and ongoing factors such as shifts in demographic, social, economic, and public health requirements. Physical limitations placed on access to potable supplies include natural and human‐caused factors such as aquifer depletion, aging infrastructure ...
Susan T. Glassmeyer, Emily E. Burns, Michael J. Focazio, Edward T. Furlong, Matthew O. Gribble, Michael A. Jahne, Scott P. Keely, Alison R. Kennicutt, Dana W. Kolpin, Elizabeth K. Medlock Kakaley, Stacy L. Pfaller   +10 more
wiley   +1 more source

Secrecy outage probability of DF‐based C‐NOMA under half and full duplex

IET Communications, Volume 17, Issue 19, Page 2188-2199, 1 December 2023., 2023
Cooperative Non‐orthogonal Multiple Access (C‐NOMA) is projected as the dominant technology for 5G and beyond. Also, physical layer security, due to the presence of eaves‐dropper, is a bottleneck security concern for any open link wireless system.
Shilpi Gadi, S. Pratap Singh, Amit Kumar, Rajneesh Kumar Singh, Ghanshyam Singh   +4 more
wiley   +1 more source

Secure transmission for reconfigurable intelligent surface assisted communication with CV‐DDPG

IET Communications, Volume 17, Issue 18, Page 2107-2118, November 2023., 2023
For the communication eavesdropping prevention problem with RIS participation, the problem is transformed into a Markov decision process and design models that can directly handle reinforcement learning of complex values to protect the security of the system.
Ling Gao, Li Xu, Yuexin Zhang, Wei Lin
wiley   +1 more source

Physical layer security of single‐input multiple‐out relay networks over Beaulieu‐Xie fading channels

IET Communications, Volume 17, Issue 16, Page 1928-1939, October 2023., 2023
The single‐input multiple‐out (SIMO) system considered is the Wyner eavesdropper model with decoding and forwarding (DF) relay over Beaulieu‐Xie fading. The two performance evaluation indicators of secure outage probability (SOP) and strictly positive secrecy capacity (SPSC) are used to investigate the security performance of the wireless communication
Junxia Li, Xuexue Ma, Faxin Ye, Jiangfeng Sun   +3 more
wiley   +1 more source

Transmitter selection for secrecy against colluding eavesdroppers with backhaul uncertainty

IET Communications, Volume 17, Issue 14, Page 1741-1759, August 2023., 2023
This manuscript is a research article that deals with the security of a wireless communication network with multiple transmitters having backhaul connections in the presence of eavesdroppers. We evaluate the secrecy performance of the system and describe the numerical results along with the simulation results.
Burhan Wafai, Ankit Dubey, Chinmoy Kundu
wiley   +1 more source