Results 11 to 20 of about 440,497 (282)

Optimal Spectrum Allocation Algorithm in Cellular Heterogeneous Network [PDF]

open access: yesJisuanji gongcheng, 2019
The Heterogeneous Network(HetNet) differentiates cells and improves channel gain by densely deploying low-power nodes within the coverage of the macro Base Station(BS).However,due to limited spectrum resources,resource allocation is complicated in ...
JIN Shengda,ZHU Zhaowei,ZHAO Shangshu,KANG Kai,ZHOU Ting,LUO Xiliang
doaj   +1 more source

World radiocommunication conference 12 : implications for the spectrum eco-system [PDF]

open access: yes, 2012
Spectrum allocation is once more a key issue facing the global telecommunications industry. Largely overlooked in current debates, however, is the World Radiocommunication Conference (WRC).
A Maitra   +101 more
core   +1 more source

Traffic-Driven Spectrum Allocation in Heterogeneous Networks [PDF]

open access: yes, 2015
Next generation cellular networks will be heterogeneous with dense deployment of small cells in order to deliver high data rate per unit area. Traffic variations are more pronounced in a small cell, which in turn lead to more dynamic interference to ...
Guo, Dongning   +2 more
core   +1 more source

Comparative Statics On The Allocation Of Spectrum

open access: yesCoRR, 2013
15 pages, 5 ...
Vijay G. Subramanian   +2 more
openaire   +2 more sources

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

Energy-Efficient Heterogeneous Cellular Networks with Spectrum Underlay and Overlay Access [PDF]

open access: yes, 2016
In this paper, we provide joint subcarrier assignment and power allocation schemes for quality-of-service (QoS)-constrained energy-efficiency (EE) optimization in the downlink of an orthogonal frequency division multiple access (OFDMA)-based two-tier ...
Alsusa, Emad   +5 more
core   +2 more sources

An Improved Centralized Cognitive Radio Network Spectrum Allocation Algorithm Based on the Allocation Sequence

open access: yesInternational Journal of Distributed Sensor Networks, 2013
The demand of the wireless communications service is increasing in recent years, and the demand of the wireless communication rate is increasing too. However, the static spectrum allocation mechanism results in lots of free spectrum resources in space ...
Jianli Zhao, Jinsha Yuan
doaj   +1 more source

Imprecise Markov Models for Scalable and Robust Performance Evaluation of Flexi-Grid Spectrum Allocation Policies [PDF]

open access: yes, 2018
The possibility of flexibly assigning spectrum resources with channels of different sizes greatly improves the spectral efficiency of optical networks, but can also lead to unwanted spectrum fragmentation.We study this problem in a scenario where traffic
De Bock, Jasper   +3 more
core   +3 more sources

Spectrum for V2X: Allocation and Sharing

open access: yesIEEE Transactions on Cognitive Communications and Networking, 2019
This paper investigates how much spectrum should be available for intelligent transportation systems (ITS), and whether part of that spectrum should be shared with unlicensed devices, as has been considered by the U.S. Federal Communications Commission (FCC), and if so, what sharing scheme should be adopted.
Alexandre K. Ligo, Jon M. Peha
openaire   +1 more source

Spectrum Allocation Strategies for Heterogeneous Networks [PDF]

open access: yesProceedings of the 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2011
This work analyzed the trade-off between the area spectral efficiency and outage user rates in heterogeneous cellular networks with overlapping picocells. We considered two different models for the spectrum allocation and cell association. The first model employs a spectrum overlapping strategy with an SINR-based cell association.
Rindranirina Ramamonjison   +6 more
openaire   +1 more source

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