Results 11 to 20 of about 7,680 (294)

Evaluating Secrecy Capacity for In-Body Wireless Channels [PDF]

open access: yesEntropy, 2019
The next generation of implanted medical devices is expected to be wireless, bringing along new security threats. Thus, it is critical to secure the communication between legitimate nodes inside the body from a possible eavesdropper.
Muhammad Faheem Awan   +6 more
doaj   +5 more sources

Secrecy capacity of LiFi systems [PDF]

open access: yesEmerging Imaging and Sensing Technologies for Security and Defence V; and Advanced Manufacturing Technologies for Micro- and Nanosystems in Security and Defence III, 2020
Radio frequency (RF) signals propagate through most materials that we are surrounded by while light is blocked by many of these materials. This feature makes wireless networks based on light (which are also referred to as LiFi networks) inherently more secure.
Abumarshoud, Hanaa   +3 more
openaire   +4 more sources

The Secrecy Capacity Optimization Artificial Noise: A New Type of Artificial Noise for Secure Communication in MIMO System

open access: yesIEEE Access, 2019
In multiple-input multiple-output wireless communication system, artificial noise (AN) is designed to be aligned into the null space of the legitimate channel so that it has no effect on the legitimate channel.
Yebo Gu   +3 more
doaj   +3 more sources

Local Approximation of Secrecy Capacity

open access: yes2024 32nd European Signal Processing Conference (EUSIPCO)
Submitted to EUSIPCO ...
Athanasakos, Emmanouil-Marios   +2 more
openaire   +5 more sources

Secrecy Capacity and Efficiency Outage Analysis of Cooperative PHY-Secure Wireless Systems and Secrecy Capacity-Based RIS Design

open access: yesIEEE Access
Physical layer (PHY) security (PLS) leverages the inherent randomness of wireless fading channels to provide enhanced secrecy capacity. In this work, we consider a four-node, dual hop, eavesdropper-aware cooperative PHY-security model.
Tarun Jain   +2 more
doaj   +2 more sources

Secrecy Capacity of Space Keying with Two Antennas [PDF]

open access: yes2012 IEEE Vehicular Technology Conference (VTC Fall), 2012
Spatial modulation (SM) and space shift keying (SSK) use only one out of several transmit antennas at a time to transmit data via an antenna index. In such a system, the information is encoded by exploiting channel randomness i.e. the fact that channels between different transmit and receive antennas are random.
Sinan Sinanovic   +3 more
openaire   +2 more sources

Chaotic sequence based polar code encrypted scheme in negative secrecy capacity case [PDF]

open access: yesTongxin xuebao, 2020
A chaos based encrypted polar coding scheme,which could be applied to the negative secrecy capacity case,was proposed.Chaotic sequences were employed to encrypt the information bits and fill the frozen bits.And multi-block polar coding structure was also
Xiaohui ZHANG, Shunliang ZHANG, Bowen LI
doaj   +4 more sources

Amplitude Constrained Vector Gaussian Wiretap Channel: Properties of the Secrecy-Capacity-Achieving Input Distribution. [PDF]

open access: yesEntropy (Basel), 2023
This paper studies the secrecy capacity of an n-dimensional Gaussian wiretap channel under a peak power constraint. This work determines the largest peak power constraint (Formula presented.), such that an input distribution uniformly distributed on a ...
Favano A, Barletta L, Dytso A.
europepmc   +3 more sources

On the secrecy capacity of fading Gaussian wiretap channel [PDF]

open access: yes2015 IEEE 14th Canadian Workshop on Information Theory (CWIT), 2015
We consider the fast-fading Gaussian wiretap channel with single antenna nodes and without channel state information at the transmitter (CSIT), where the fading processes of the two links are arbitrary and independent of each other. We derive an upper bound to the secrecy capacity for this channel and an achievable rate as well.
Mohammad K. Hossan   +2 more
openaire   +3 more sources

Realistic Secrecy Performance Analysis for LiFi Systems

open access: yesIEEE Access, 2021
This paper studies the secrecy performance of light-fidelity (LiFi) networks under the consideration of random device orientation and partial knowledge of the eavesdroppers’ channel state information. Particularly, the secrecy capacity and secrecy
Hanaa Abumarshoud   +3 more
doaj   +1 more source

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