Results 21 to 30 of about 231,657 (285)

When Does Relay Transmission Give a More Secure Connection in Wireless Ad Hoc Networks? [PDF]

open access: yes, 2014
Relay transmission can enhance coverage and throughput, while it can be vulnerable to eavesdropping attacks due to the additional transmission of the source message at the relay.
Cai, Chunxiao   +4 more
core   +1 more source

Secure, Accurate, and Practical Narrow-Band Ranging System

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2021
Relay attacks pose a serious security threat to wireless systems, such as, contactless payment systems, keyless entry systems, or smart access control systems. Distance bounding protocols, which allow an entity to not only authenticate another entity but
Aysajan Abidin   +5 more
doaj   +1 more source

Extending the Reach of QKD Using Relays

open access: yes, 2012
One of the obstacles to deployment of QKD solutions has been the distance limitation. Solutions using relays have been proposed but these rely on link-by-link key establishment.
Barnett, Stephen M.   +1 more
core   +1 more source

Reconceptualizing the Transmission Line Protection From the Perspective of IBR-Dominated Grid

open access: yesIEEE Access
This study evaluates the performance of distance relay in the presence of inverter-based resources. In particular, it investigated the dynamic response of an inverter-based resource that is endowed with low voltage ride through capability and the ...
Nikhil M Varghese, Manas Kumar Jena
doaj   +1 more source

Design of mine-used intrinsically safe remote relay power supply

open access: yesGong-kuang zidonghua, 2016
In order to satisfy long-distance transmission requirements of sensor used on underground super long working face, a mine-used intrinsically safe remote relay power supply was designed.
LIN yi
doaj   +1 more source

Cooperative Multiplexing in the Multiple Antenna Half Duplex Relay Channel

open access: yes, 2009
Cooperation between terminals has been proposed to improve the reliability and throughput of wireless communication. While recent work has shown that relay cooperation provides increased diversity, increased multiplexing gain over that offered by direct ...
Nagpal, Vinayak   +3 more
core   +2 more sources

On the problem of energy efficiency of multi-hop vs one-hop routing in wireless sensor networks [PDF]

open access: yes, 2007
The hop distance strategy in wireless sensor networks (WSNs) has a major impact on energy consumption of each sensor mote. Long-hop routing minimizes reception cost. However, a substantial power demand is incurred for long distance transmission.
Collier, Martin, Fedor, Szymon
core   +1 more source

Midpoint Relay Selection Using Social Trust and Battery Level to Enhance Throughput in Cooperative Device-to-Device Communications

open access: yesSensors, 2020
Device-to-device communications in underlay mode has emerged as a promising way to enhance spectrum efficiency in cellular networks. Recently, relay selection in D2D communications underlaying cellular networks is gaining more research interest.
Ushik Shrestha Khwakhali   +2 more
doaj   +1 more source

The development of the impedance measured by distance relay [PDF]

open access: yes, 2015
This paper explains the possibility of implementation of a model of a quadrilateral characteristic type of distance relay with the zones using MATLAB/SIMULINK package. SimPowerSystem was used to present modeling of distance relay.
Wannous, K.
core  

Resource Allocation for Network-Integrated Device-to-Device Communications Using Smart Relays

open access: yes, 2013
With increasing number of autonomous heterogeneous devices in future mobile networks, an efficient resource allocation scheme is required to maximize network throughput and achieve higher spectral efficiency.
Hasan, Monowar, Hossain, Ekram
core   +1 more source

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