Coexistence of Cognitive Small Cell and WiFi System: A Traffic Balancing Dual-Access Resource Allocation Scheme
Joint Authors
Qianbin, Chen
Huang, Xiaoge
Li, Yangyang
Tang, She
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-01-08
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Information Technology and Computer Science
Abstract EN
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.
American Psychological Association (APA)
Huang, Xiaoge& Li, Yangyang& Tang, She& Qianbin, Chen. 2018. Coexistence of Cognitive Small Cell and WiFi System: A Traffic Balancing Dual-Access Resource Allocation Scheme. Wireless Communications and Mobile Computing،Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1216000
Modern Language Association (MLA)
Huang, Xiaoge…[et al.]. Coexistence of Cognitive Small Cell and WiFi System: A Traffic Balancing Dual-Access Resource Allocation Scheme. Wireless Communications and Mobile Computing No. 2018 (2018), pp.1-17.
https://search.emarefa.net/detail/BIM-1216000
American Medical Association (AMA)
Huang, Xiaoge& Li, Yangyang& Tang, She& Qianbin, Chen. Coexistence of Cognitive Small Cell and WiFi System: A Traffic Balancing Dual-Access Resource Allocation Scheme. Wireless Communications and Mobile Computing. 2018. Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1216000
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1216000