Results 11 to 20 of about 2,630 (183)

Statistical Analysis of a Distributed Queuing Random Access Protocol in a Massive Communication Environment [PDF]

open access: yesEAI Endorsed Transactions on Internet of Things, 2020
Most of the networks deployed for massive IoT communications use Aloha-based algorithms for channel access. However, those algorithms are known to be unstable and inefficient when the network size is high. Since recently, a Distributed
Romeo Nibitanga   +2 more
doaj   +1 more source

Comparing Delay-Constrained ALOHA and CSMA: A Learning-Based Low-Complexity Approximate Approach

open access: yesIEEE Open Journal of the Communications Society, 2021
Supporting delay-constrained traffic becomes more and more critical in multimedia communication systems, tactile Internet, networked control systems, and cyber-physical systems, etc. In delay-constrained traffic, each packet has a hard deadline.
Lei Deng   +3 more
doaj   +1 more source

Performance Analysis of Cooperative Dynamic Framed Slotted-ALOHA With Random Transmit Power Control in A2G Communication Networks

open access: yesIEEE Access, 2022
In this study, we investigate the use of low-altitude unmanned aerial vehicles (UAVs) in air-to-ground (A2G) communication networks, which still have various issues and challenges. In particular, the limited battery power of UAVs render their flight time
Junseung Lee   +3 more
doaj   +1 more source

The Influence of MAC Protocol on a Non-Synchronous Localization Scheme in Large-Scale UWSNs

open access: yesIEEE Access, 2018
Localization plays a more and more important role in underwater wireless sensor networks (UWSNs). But in the large-scale UWSNs, the localization algorithm can’t be realized for the continuous packet collision.
Keyu Chen   +4 more
doaj   +1 more source

The Effect of Storage Temperature on Threat Zone Caused by an Ammonia Release from a Storage Tank

open access: yesHittite Journal of Science and Engineering, 2022
In this study, the threat zone that may occur as a result of an accidental release of an-hydrous ammonia, a flammable and highly toxic substance (Flammability:1, Health:3, NFPA 704), which has many uses, was investigated.
Abdurrahman Akman, Mustafa Serhat Ekinci
doaj   +1 more source

Federated Learning With Multichannel ALOHA [PDF]

open access: yesIEEE Wireless Communications Letters, 2020
4 pages, 4 figures, IEEE WCL (accepted)
Jinho Choi 0001, Shiva Raj Pokhrel
openaire   +2 more sources

Cosmopolitan pleasures and affects; or why are we still talking about yellowface in twenty-first-century cinema?: The crisis of representation and interactive documentary as an agent of change

open access: yesAlphaville: Journal of Film and Screen Media, 2018
It is now widely acknowledged that the postracial fantasies ushered in by Barack Obama’s two-term election success are now in tatters. Yet debates on yellowface casting practices in contemporary Hollywood (also said to have evolved into “whitewashing ...
Felicia Chan
doaj   +1 more source

ALOHA with Queue Sharing

open access: yes2020 IEEE 17th International Conference on Mobile Ad Hoc and Sensor Systems (MASS), 2020
ALOHA with Queue Sharing (ALOHA-QS) maintains most of the simplicity of ALOHA with priority acknowledgments (ACK) and attains the high throughput of transmission scheduling methods that require clock synchronization. Channel access with ALOHA-QS consists of a sequence of queue cycles, with each cycle having one or multiple collision-free transmissions ...
Garcia-Luna-Aceves, J.J.   +2 more
openaire   +2 more sources

Оценка эффективности случайного множественного доступа к среде типа ALOHA при голосовых соединениях, передаче служебных команд, текстовых сообщений и мультимедийных файлов в условиях деструктивных воздействий

open access: yesИнформатика и автоматизация, 2019
Оценка защищенности сетей цифровой радиосвязи при деструктивных воздействиях злоумышленника является важной задачей. Однако для случайного множественного доступа к среде типа ALOHA в сетях цифровой радиосвязи такая оценка не проводилась.
Maksim Anatol'evich Peregudov   +1 more
doaj   +1 more source

DR-ALOHA-Q: A Q-Learning-Based Adaptive MAC Protocol for Underwater Acoustic Sensor Networks

open access: yesSensors, 2023
Underwater acoustic sensor networks (UASNs) are challenged by the dynamic nature of the underwater environment, large propagation delays, and global positioning system (GPS) signal unavailability, which make traditional medium access control (MAC ...
Slavica Tomovic, Igor Radusinovic
doaj   +1 more source

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