Results 31 to 40 of about 1,868,942 (286)

Downlink spectrum allocation in 5G HetNets [PDF]

open access: yes2014 International Wireless Communications and Mobile Computing Conference (IWCMC), 2014
Fifth generation mobile systems (5G) target an Average Area Spectral Efficiency (AASE) over hundred Gbps/km/user for future mobile systems with an Energy Dissipation (ED) per unit area similar to the current ED levels. Heterogeneous networks (HetNets) with high density of deployed small cells are currently adopted to aid in achieving the target ED and ...
Tamer R. Omar   +2 more
openaire   +1 more source

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

BER-Adaptive RMLSA Algorithm for Wide-Area Flexible Optical Networks

open access: yesIEEE Access, 2020
Wide-area optical networks face significant transmission challenges due to the relentless growth of bandwidth demands experienced nowadays. Network operators must consider the relationship between modulation format and maximum reach for each connection ...
Felipe Ignacio Calderon   +7 more
doaj   +1 more source

Spectrum Allocation in Cognitive Networks

open access: yesCoRR, 2016
Cognitive Network is a technique which is used to improve the spectrum utilization. Current network scenario is experiencing the huge spectrum scarcity problem due to the fixed assignment policy so in this method great amount of spectrum remain unused. To overcome this limitation the spectrum allocation must be in dynamic manner.
openaire   +2 more sources

A Welfare Analysis of Spectrum Allocation Policies [PDF]

open access: yesSSRN Electronic Journal, 2008
Economic analysis of spectrum policy focuses on government revenues derived via competitive bidding for licenses. Auctions generating high bids are identified as “successful” and those with lower receipts as “fiascoes.” Yet spectrum policies that create rents impose social costs.
Thomas W. Hazlett, Roberto E. Muñoz
openaire   +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

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

On the Efficiency and Complexity of Distributed Spectrum Allocation [PDF]

open access: yes2007 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2007
We study the efficiency and complexity of a distributed spectrum allocation algorithm using explicit user coordination. Users self-organize into coordination groups and adjust spectrum assignments in each local group to approximate an optimal assignment.
Lili Cao, Haitao Zheng 0001
openaire   +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

Opportunistic Capacity-Based Resource Allocation for Chunk-Based Multi-Carrier Cognitive Radio Sensor Networks

open access: yesSensors, 2017
The spectrum allocation for cognitive radio sensor networks (CRSNs) has received considerable research attention under the assumption that the spectrum environment is static.
Jie Huang   +4 more
doaj   +1 more source

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