Dual-band femtocell traffic balancing over licensed and unlicensed bands

2012 ◽  
Author(s):  
Feilu Liu ◽  
Elza Erkip ◽  
Mihaela C. Beluri ◽  
Rui Yang ◽  
Erdem Bala
Keyword(s):  
Dual Band ◽  
Traffic Balancing ◽  
Unlicensed Bands

scholarly journals Coexistence of Cognitive Small Cell and WiFi System: A Traffic Balancing Dual-Access Resource Allocation Scheme

2018 ◽  
Vol 2018 ◽  
pp. 1-17 ◽  
Author(s):  
Xiaoge Huang ◽  
Yangyang Li ◽  
She Tang ◽  
Qianbin Chen
Keyword(s):  
Power Allocation ◽  
Optimization Problems ◽  
Holistic Approach ◽  
Data Rate ◽  
Small Cell ◽  
Dual Band ◽  
Cell Selection ◽  
Allocation Scheme ◽  
Traffic Balancing ◽  
Unlicensed Bands

We consider a holistic approach for dual-access cognitive small cell (DACS) networks, which uses the LTE air interface in both licensed and unlicensed bands. In the licensed band, we consider a sensing-based power allocation scheme to maximize the sum data rate of DACSs by jointly optimizing the cell selection, the sensing operation, and the power allocation under the interference constraint to macrocell users. Due to intercell interference and the integer nature of the cell selection, the resulting optimization problems lead to a nonconvex integer programming. We reformulate the problem to a nonconvex power allocation game and find the relaxed equilibria, quasi-Nash equilibrium. Furthermore, in order to guarantee the fairness of the whole system, we propose a dynamic satisfaction-based dual-band traffic balancing (SDTB) algorithm over licensed and unlicensed bands for DACSs which aims at maximizing the overall satisfaction of the system. We obtain the optimal transmission time in the unlicensed band to ensure the proportional fair coexistence with WiFi while guaranteeing the traffic balancing of DACSs. Simulation results demonstrate that the SDTB algorithm could achieve a considerable performance improvement relative to the schemes in literature, while providing a tradeoff between maximizing the total data rate and achieving better fairness among networks.

scholarly journals Small-Cell Traffic Balancing Over Licensed and Unlicensed Bands

2015 ◽  
Vol 64 (12) ◽  
pp. 5850-5865 ◽  
Author(s):  
Feilu Liu ◽  
Erdem Bala ◽  
Elza Erkip ◽  
Mihaela C. Beluri ◽  
Rui Yang
Keyword(s):  
Small Cell ◽  
Traffic Balancing ◽  
Unlicensed Bands

Tac-U: A traffic balancing scheme over licensed and unlicensed bands for Tactile Internet

2019 ◽  
Vol 97 ◽  
pp. 41-49 ◽  
Author(s):  
Yuhan Su ◽  
Xiaozhen Lu ◽  
Lianfen Huang ◽  
Xiaojiang Du ◽  
Mohsen Guizani
Keyword(s):  
Traffic Balancing ◽  
Unlicensed Bands

scholarly journals Traffic balancing over licensed and unlicensed bands in heterogeneous networks

2016 ◽  
Vol 1 (2) ◽  
pp. 115-124
Author(s):  
Zhen Li ◽  
Qimei Cui ◽  
Zhiyan Cui ◽  
Wei Zheng
Keyword(s):  
Heterogeneous Networks ◽  
Traffic Balancing ◽  
Unlicensed Bands

DNA sequence mapping in interphase and metaphase chromosomes by fluorescence in situ hybridization

1992 ◽  
Vol 50 (1) ◽  
pp. 496-497
Author(s):  
Barbara Trask ◽  
Susan Allen ◽  
Anne Bergmann ◽  
Mari Christensen ◽  
Anne Fertitta ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Dna Sequence ◽  
Dna Sequences ◽  
Dual Band ◽  
Nick Translation ◽  
Metaphase Chromosomes ◽  
Band Pass ◽  
Texas Red ◽  
Fluorescent Spot

Using fluorescence in situ hybridization (FISH), the positions of DNA sequences can be discretely marked with a fluorescent spot. The efficiency of marking DNA sequences of the size cloned in cosmids is 90-95%, and the fluorescent spots produced after FISH are ≈0.3 μm in diameter. Sites of two sequences can be distinguished using two-color FISH. Different reporter molecules, such as biotin or digoxigenin, are incorporated into DNA sequence probes by nick translation. These reporter molecules are labeled after hybridization with different fluorochromes, e.g., FITC and Texas Red. The development of dual band pass filters (Chromatechnology) allows these fluorochromes to be photographed simultaneously without registration shift.

Dual band hybrid vehicular telephone antenna

2002 ◽  
Vol 149 (1) ◽  
pp. 41-44 ◽  
Author(s):  
L. Economou ◽  
R.J. Langley
Keyword(s):  
Dual Band

Single-peak-regulation and wide-angle dual-band metamaterial absorber based on hollow-cross and solid-cross resonators

2020 ◽  
Vol 91 (3) ◽  
pp. 30901
Author(s):  
Yibo Tang ◽  
Longhui He ◽  
Jianming Xu ◽  
Hailang He ◽  
Yuhan Li ◽  
...  
Keyword(s):  
Transverse Electric ◽  
Surface Current ◽  
Dielectric Substrate ◽  
Transverse Magnetic ◽  
Metamaterial Absorber ◽  
Absorption Peak ◽  
Dual Band ◽  
Single Peak ◽  
Wide Angle ◽  
Surface Current Density

A dual-band microwave metamaterial absorber with single-peak regulation and wide-angle absorption has been proposed and illustrated. The designed metamaterial absorber is consisted of hollow-cross resonators, solid-cross resonators, dielectric substrate and metallic background plane. Strong absorption peak coefficients of 99.92% and 99.55% are achieved at 8.42 and 11.31 GHz, respectively, which is basically consistent with the experimental results. Surface current density and changing material properties are employed to illustrate the absorptive mechanism. More importantly, the proposed dual-band metamaterial absorber has the adjustable property of single absorption peak and could operate well at wide incidence angles for both transverse electric (TE) and transverse magnetic (TM) waves. Research results could provide and enrich instructive guidances for realizing a single-peak-regulation and wide-angle dual-band metamaterial absorber.

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