Results 11 to 20 of about 12,705 (218)

The throughput of slotted aloha with diversity [PDF]

open access: yes2013 51st Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2013
Accepted for publications at 51st Annual Allerton Conference on Communication, Control, and ...
Munari, Andrea   +3 more
openaire   +5 more sources

Guided-Aloha for Secondary Access With Spectrum Prediction

open access: yesIEEE Access
The demand for spectrum access continues to grow exponentially and dynamic spectrum access (DSA) is a candidate to alleviate issues with spectrum scarcity by adapting spectrum resources in real-time.
Sithamparanathan Kandeepan   +5 more
doaj   +2 more sources

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

Wahi Pana Aloha ʻĀina: Storied Places of Resistance as Political Intervention

open access: yesGenealogy, 2022
Wahi pana aloha ʻāina, storied places of resistance, is a historical and political research device that perpetuates contemporary Hawaiian sovereignty history, and can serve as a political intervention between Kanaka (Hawaiian people) and the State of ...
Keahialaka Waikaʻalulu Ioane
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

Analytical Model of ALOHA and Time- and Frequency-Asynchronous ALOHA with Forward Error Correction for IoT Systems

open access: yesSensors, 2022
The blooming of internet of things (IoT) services calls for a paradigm shift in the design of communications systems. Short data packets sporadically transmitted by a multitude of low-cost low-power terminals require a radical change in relevant aspects ...
Federico Clazzer, Marcel Grec
doaj   +1 more source

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

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

Performance Enhancements for Asynchronous Random Access Protocols over Satellite [PDF]

open access: yes, 2011
In this paper, a novel enhancement of the well known ALOHA random access mechanism is presented which largely extends the achievable throughput compared to traditional ALOHA and provides significantly lower packet loss rates. The novel mechanism, called
Kissling, Christian, Christian Kissling
core   +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

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