Results 11 to 20 of about 334,773 (381)

Jamming in Granular Polymers [PDF]

open access: yesPhysical Review E, 2011
We examine the jamming transition in a two-dimensional granular polymer system using compressional simulations. The jamming density \phi_c decreases with increasing length of the granular chain due to the formation of loop structures, in excellent ...
Lopatina, L. M.   +2 more
core   +4 more sources

Remarks on the “Jam Suph” [PDF]

open access: greenPalestine Exploration Quarterly, 1881
n ...
G. F. S. Stooke Vaughan
openalex   +4 more sources

Jamming Attacks and Anti-Jamming Strategies in Wireless Networks: A Comprehensive Survey [PDF]

open access: yesIEEE Communications Surveys and Tutorials, 2021
Wireless networks are a key component of the telecommunications infrastructure in our society, and wireless services become increasingly important as the applications of wireless devices have penetrated every aspect of our lives.
Hossein Pirayesh, Huacheng Zeng
semanticscholar   +1 more source

Wireless Covert Communications Aided by Distributed Cooperative Jamming Over Slow Fading Channels [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2021
In this paper, we study covert communications between a pair of legitimate transmitter-receiver against a watchful warden over slow fading channels. There coexist multiple friendly helper nodes who are willing to protect the covert communication from ...
Tongxing Zheng   +5 more
semanticscholar   +1 more source

Distributed Few-Shot Learning for Intelligent Recognition of Communication Jamming

open access: yesIEEE Journal on Selected Topics in Signal Processing, 2022
Effective recognition of communication jamming is of vital importance in improving wireless communication system’s anti-jamming capability. Motivated by the major challenges that the jamming data sets in wireless communication system are often small and ...
Mingqian Liu   +5 more
semanticscholar   +1 more source

Intelligent Reflecting Surface Assisted Anti-Jamming Communications: A Fast Reinforcement Learning Approach [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2020
Malicious jamming launched by smart jammers can attack legitimate transmissions, which has been regarded as one of the critical security challenges in wireless communications.
Helin Yang   +6 more
semanticscholar   +1 more source

Outage Constrained Robust Beamforming Optimization for Multiuser IRS-Assisted Anti-Jamming Communications With Incomplete Information

open access: yesIEEE Internet of Things Journal, 2022
Malicious jamming attacks have been regarded as a serious threat to Internet of Things (IoT) networks, which can significantly degrade the Quality of Service (QoS) of users.
Yifu Sun   +5 more
semanticscholar   +1 more source

New Jamming Scenario: From Marginal Jamming to Deep Jamming [PDF]

open access: yesPhysical Review Letters, 2011
We study properties of jammed packings of frictionless spheres over a wide range of volume fractions. There exists a crossover volume fraction which separates deeply jammed solids from marginally jammed solids. In deeply jammed solids, all the scalings presented in marginally jammed solids are replaced with remarkably different ones with potential ...
Cang Zhao, Kaiwen Tian, Ning Xu
openaire   +4 more sources

Jamming with Tunable Roughness [PDF]

open access: yesPhysical Review Letters, 2020
We introduce a new model to study the effect of surface roughness on the jamming transition. By performing numerical simulations, we show that for a smooth surface, the jamming transition density and the contact number at the transition point both increase upon increasing asphericity, as for ellipsoids and spherocylinders.
Ikeda, Harukuni   +3 more
openaire   +6 more sources

Game jam [PDF]

open access: yesCHI '13 Extended Abstracts on Human Factors in Computing Systems, 2013
Game Jams - energized, fast-paced get-togethers of developers and artists to make digital games - have recently emerged as a way to generate and inspire novel game ideas and new ways of thinking. We intend to introduce the CHI community to this collaborative, fast-paced method of design by holding a game jam with an emphasis on developing novel user ...
Chatham, Alan   +7 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy