Results 61 to 70 of about 10,351,223 (373)

Distributed Optimal Random Access Scheme for Energy Harvesting Devices in Satellite Communication Networks

open access: yesSensors, 2018
This paper considers satellite communication networks where each satellite terminal is equipped with energy harvesting (EH) devices to supply energy continuously, and randomly transmits bursty packets to a geostationary satellite over a shared wireless ...
Pengxu Li, Gaofeng Cui, Weidong Wang
doaj   +1 more source

Entanglement assisted random access codes

open access: yes, 2010
An (n,m,p) Random Access Code (RAC) allows to encode n bits in an m bit message, in such a way that a receiver of the message can guess any of the original $n$ bits with probability p, greater than 1/2.
M. Żukowski   +2 more
core   +1 more source

Exploiting Regional Differences: A Spatially Adaptive Random Access [PDF]

open access: yes, 2015
In this paper, we discuss the potential for improvement of the simple random access scheme by utilizing local information such as the received signal-to-interference-plus-noise-ratio (SINR).
Kim, Dong Min, Kim, Seong-Lyun
core   +1 more source

Towards Massive Connectivity Support for Scalable mMTC Communications in 5G Networks

open access: yesIEEE Access, 2018
The fifth generation of cellular communication systems is foreseen to enable a multitude of new applications and use cases with very different requirements.
Carsten Bockelmann   +18 more
doaj   +1 more source

Random Access Using Deep Reinforcement Learning in Dense Mobile Networks

open access: yesSensors, 2021
5G and Beyond 5G mobile networks use several high-frequency spectrum bands such as the millimeter-wave (mmWave) bands to alleviate the problem of bandwidth scarcity. However high-frequency bands do not cover larger distances.
Yared Zerihun Bekele, Young-June Choi
doaj   +1 more source

Random Access Channel Coding in the Finite Blocklength Regime [PDF]

open access: yes, 2020
Consider a random access communication scenario over a channel whose operation is defined for any number of possible transmitters. Inspired by the model recently introduced by Polyanskiy for the Multiple Access Channel (MAC) with a fixed, known number of
Effros, Michelle   +2 more
core   +2 more sources

Asynchronous Pattern-Designed Channel Access Protocol in Underwater Acoustic Wireless Sensor Networks

open access: yesJournal of Marine Science and Engineering, 2023
Due to the significant propagation delay in underwater sensor networks, conflict retransmission in channel access protocols comes at a high cost. This poses a challenge in scenarios where multiple sensor nodes generate data frames with strong temporal ...
Jie Ren, Yanbo Wu, Min Zhu
doaj   +1 more source

Random access-random release relay switching matrix [PDF]

open access: yes, 1968
XY relay switching matrix provides complete random access and random release of 400 points. A mercury-wetted bistable relay with independent set and reset coils is the unique feature associated with each ...
Carter, J. A., Evans, F. E.
core   +1 more source

Random access quantum information processors

open access: yes, 2017
Qubit connectivity is an important property of a quantum processor, with an ideal processor having random access -- the ability of arbitrary qubit pairs to interact directly.
Chakram, S.   +8 more
core   +3 more sources

Dynamic computing random access memory [PDF]

open access: yesNanotechnology, 2014
The present von Neumann computing paradigm involves a significant amount of information transfer between a central processing unit (CPU) and memory, with concomitant limitations in the actual execution speed. However, it has been recently argued that a different form of computation, dubbed memcomputing [Nature Physics, 9, 200-202 (2013)] and inspired ...
TRAVERSA, Fabio Lorenzo   +3 more
openaire   +3 more sources

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