A control theoretic approach to achieve proportional fairness in 802.11e EDCA WLANs

Chen, Xiaomin, Akinyemi, Ibukunoluwa and Yang, Shuang-Hua (2016) A control theoretic approach to achieve proportional fairness in 802.11e EDCA WLANs. Computer Communications, 75. pp. 39-49. ISSN 0140-3664

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Chen et al - A control theoretic approach to achieve proportional fairness in 802.11e EDCA WLANs AAM.pdf - Accepted Version

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Official URL: http://dx.doi.org/10.1016/j.comcom.2015.11.002

Abstract

This paper considers proportional fairness amongst ACs in an EDCA WLAN for provision of distinct QoS requirements and priority parameters. A detailed theoretical analysis is provided to derive the optimal station attempt probability which leads to a proportional fair allocation of station throughputs. The desirable fairness can be achieved using a centralised adaptive control approach. This approach is based on multivariable state-space control theory and uses the Linear Quadratic Integral (LQI) controller to periodically update CWmin till the optimal fair point of operation. Performance evaluation demonstrates that the control approach has high accuracy performance and fast convergence speed for general network scenarios. To our knowledge this might be the first time that a closed-loop control system is designed for EDCA WLANs to achieve proportional fairness.

Item Type: Article
Uncontrolled Keywords: 802.11e EDCA WLANs; Proportional fairness; Closed-loop control
Subjects: G400 Computer Science
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: Paul Burns
Date Deposited: 05 Jul 2018 13:14
Last Modified: 11 Dec 2018 14:01
URI: http://nrl.northumbria.ac.uk/id/eprint/34827

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