Results 31 to 40 of about 23,946 (295)

Joint call admission control and resource allocation for H.264 SVC transmission over OFDMA networks [PDF]

open access: yes, 2010
This paper aims to combine adaptive subcarrier allocation and bit loading with the transmission of the H.264 SVC (Scalable Video Coding) encoded video sequences in order to increase the number of supported users in the system and provide the best quality
Bocus, MZ   +5 more
core   +1 more source

A traffic-awareness dynamic resource allocation scheme based on multi-objective optimization in multi-beam mobile satellite communication systems

open access: yesInternational Journal of Distributed Sensor Networks, 2017
Mobile satellite communication systems play an important role in space information networks. They mostly operate at the L or S band and have multiple beams efficiently reusing the limited spectrum.
YuanZhi He, YiZhen Jia, XuDong Zhong
doaj   +1 more source

A game theoretic approach to distributed resource allocation for OFDMA-based relaying networks [PDF]

open access: yes, 2008
In this paper, algorithms on distributed resource (spectrum and power) sharing for relay stations are investigated for downlink transmissions in an OFDMA-based relay-aided cell. Both system capacity and user fairness are considered. By grouping the relay
Nix, AR   +5 more
core   +1 more source

An improved multi-agent simulation methodology for modelling and evaluating wireless communication systems resource allocation algorithms [PDF]

open access: yes, 2008
Multi-Agent Systems (MAS) constitute a well known approach in modelling dynamical real world systems. Recently, this technology has been applied to Wireless Communication Systems (WCS), where efficient resource allocation is a primary goal, for modelling
Karras, Dimitrios   +7 more
core   +1 more source

Design and Performance Analysis of a Dynamic Channel Allocation Method for IoT Systems with Finite Number of Nodes and Heterogeneous Data Traffics

open access: yesSakarya University Journal of Computer and Information Sciences
This paper presents the design, modeling, and analysis of a dynamic channel allocation method for IoT systems with a finite number of nodes and heterogeneous data traffic types.
Feyyaz Okul, Sedat Atmaca
doaj   +1 more source

A Double Auction Framework for Multi-Channel Multi-Winner Heterogeneous Spectrum Allocation in Cognitive Radio Networks

open access: yesIEEE Access, 2021
Opportunistic availability of licensed frequency bands enables the secondary users (SUs) to avail the radio spectrum dynamically. Cognitive radio (CR) paradigm extends the dynamic spectrum access techniques to sense for free channels (called spectrum ...
Monisha Devi   +2 more
doaj   +1 more source

Hierarchical Genetic Algorithm For Dynamic Channel Units Allocation in TD-CDMA/TDD System

open access: yes, 2009
Hierarchical Genetic Algorithms (HGA) as a tool for search and optimizing methodology have now reached a mature stage. The minimum resource facility to carry user traffic, termed a channel unit (CU), is composed of a one time-slot and one code in the TD ...
Dynamic channel unit allocation, load balancing, hierarchical genetic algorithms, neural-fuzzy controllers, TDD-CDMA/TDD, wireless networks, radio resource management
core   +1 more source

A Deep Reinforcement Learning Based Approach for Energy-Efficient Channel Allocation in Satellite Internet of Things

open access: yesIEEE Access, 2020
Recently, Satellite Internet of Things (SIoT), a space network that consists of numerous Low Earth Orbit (LEO) satellites, is regarded as a promising technique since it is the only solution to provide 100% global coverage for the whole earth, without any
Baokang Zhao   +3 more
doaj   +1 more source

Efficacy of Intermittent Theta‐Burst Stimulation for Prolonged Disorders of Consciousness: A Prospective, Randomized, Controlled Trial

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu   +10 more
wiley   +1 more source

A dynamic spectrum access scheme for cognitive radio networks

open access: yes, 2009
—In this paper, the dynamic spectrum access problem for cognitive radio (CR) networks is formulated as maximizing the sum channel capacity while satisfying the power budgets of individual secondary user radios as well as the SINR constraints on both the ...
K.-L. Du   +9 more
core   +1 more source

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