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