Results 31 to 40 of about 436,980 (282)

A multi-greedy spectrum auction algorithm for cognitive small cell networks

open access: yesInternational Journal of Distributed Sensor Networks, 2017
Cognitive small cell networks consisting of macro- and small cells are foreseen as a candidate solution to meet ever increasing requirements of broadband services and new applications.
Feng Zhao, Bo Liu, Hongbin Chen
doaj   +1 more source

Trust-based Spectrum Resource Allocation Mechanism in Internet of Things [PDF]

open access: yesJisuanji gongcheng, 2020
With the rapid development of wireless networks,the problem of efficient allocation of spectrum resources in the Internet of Things(IoT) needs to be solved.Therefore,this paper proposes TSRA,a trust based spectrum resources allocation mechanism.By ...
WEI Xinyan, ZHANG Lin
doaj   +1 more source

Multiuser Diversity Gain in Cognitive Networks [PDF]

open access: yes, 2010
Dynamic allocation of resources to the \emph{best} link in large multiuser networks offers considerable improvement in spectral efficiency. This gain, often referred to as \emph{multiuser diversity gain}, can be cast as double-logarithmic growth of the ...
Tajer, Ali, Wang, Xiaodong
core   +1 more source

Millimeter-Wave Spectrum Utilization Improvement in Multi-Operator Networks: A Framework Using the Equal Likelihood Criterion

open access: yesIEEE Access, 2021
In this paper, we present a framework to give a comprehensive review of how to improve the spectrum utilization of millimeter-wave (mmWave) systems using indoor small cells in multi-operator network scenarios.
Rony Kumer Saha
doaj   +1 more source

Combining Spot and Futures Markets: A Hybrid Market Approach to Dynamic Spectrum Access

open access: yes, 2016
Dynamic spectrum access is a new paradigm of secondary spectrum utilization and sharing. It allows unlicensed secondary users (SUs) to exploit opportunistically the under-utilized licensed spectrum.
Chen, Ying-Ju   +3 more
core   +1 more source

Gridless optical networking field trial: flexible spectrum switching, defragmentation and transport of 10G/40G/100G/555G over 620-km field fiber [PDF]

open access: yes, 2011
We present results from the first gridless networking field trial with flexible spectrum switching nodes and 620 km of installed fibre links. Signals at 10G, 12.25G, 42.7G, DP-QPSK 40G, DP-QPSK 100G and 555G are generated, successfully transported and ...
Amaya, N   +13 more
core   +1 more source

Spectrum sharing and cognitive radio [PDF]

open access: yes, 2009
Spectrum sharing has been the subject of a 3 year research programme organised by the UK's Virtual Centre of Excellence in Mobile and Personal Communications.
Beach, MA   +5 more
core   +2 more sources

Dual-target WOA spectrum sharing algorithm based on Stackelberg game

open access: yesTongxin xuebao, 2020
In order to solve the complex spectrum allocation problem,a dual-target whale optimization algorithm (WOA) with strong parallel computing capabilities was introduced,and a Stackelberg game model was proposed that could effectively reflect the actual ...
Li ZHANG, Tian LIAO, Yejun HE
doaj   +2 more sources

Intelligent Dynamic Real-Time Spectrum Resource Management for Industrial IoT in Edge Computing

open access: yesSensors, 2021
Intelligent dynamic spectrum resource management, which is based on vast amounts of sensing data from industrial IoT in the space–time and frequency domains, uses optimization algorithm-based decisions to minimize levels of interference, such as energy ...
Deok-Won Yun, Won-Cheol Lee
doaj   +1 more source

Interference elimination based spectrum allocation algorithm for cognitive radio

open access: yesTongxin xuebao, 2012
With the spectrum allocation process in cognitive radio network,an interference elimination based spectrum allocation algorithm was proposed to improve the utilization of spectrum by allocating available spectrum to all cognitive users which can ...
Wen-feng DU   +3 more
doaj   +2 more sources

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