A cross-layer design for per-flow and weighted fairness between uplink and downlink in WLANs

Chiapin Wang; Hao Kai Lo; Kueihsiang Liang; Chuyuan Hsu

doi:10.1109/ICCS.2010.5686519

A cross-layer design for per-flow and weighted fairness between uplink and downlink in WLANs

Chiapin Wang^*, Hao Kai Lo, Kueihsiang Liang, Chuyuan Hsu

^*Corresponding author for this work

Department of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

In this paper, we investigate a fairness issue between uplink and downlink flows in IEEE 802.11 Wireless Local Area Networks (WLANs). We propose a cross-layer adaptive algorithm which dynamically adjusts the minimum contention window size of Access Point (AP) according to the amount of downlink users and channel environments to achieve per-flow fairness. In case that uplink and downlink transmissions are with different bandwidth demands for various applications, our algorithm can efficiently find the optimal contention window size which provides weighted fairness based on their resource requirements. The simulation results demonstrate that our scheme can effectively provide both per-flow fairness and weighted fairness in a varying heterogeneous WLAN environment.

Original language	English
Title of host publication	12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Pages	421-425
Number of pages	5
DOIs	https://doi.org/10.1109/ICCS.2010.5686519
Publication status	Published - 2010
Event	12th IEEE International Conference on Communication Systems 2010, ICCS 2010 - Singapore, Singapore Duration: 2010 Nov 17 → 2010 Nov 19

Publication series

Name	12th IEEE International Conference on Communication Systems 2010, ICCS 2010

Other

Other	12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Country/Territory	Singapore
City	Singapore
Period	2010/11/17 → 2010/11/19

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

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10.1109/ICCS.2010.5686519

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Wang, C., Lo, H. K., Liang, K., & Hsu, C. (2010). A cross-layer design for per-flow and weighted fairness between uplink and downlink in WLANs. In 12th IEEE International Conference on Communication Systems 2010, ICCS 2010 (pp. 421-425). Article 5686519 (12th IEEE International Conference on Communication Systems 2010, ICCS 2010). https://doi.org/10.1109/ICCS.2010.5686519

A cross-layer design for per-flow and weighted fairness between uplink and downlink in WLANs. / Wang, Chiapin; Lo, Hao Kai; Liang, Kueihsiang et al.
12th IEEE International Conference on Communication Systems 2010, ICCS 2010. 2010. p. 421-425 5686519 (12th IEEE International Conference on Communication Systems 2010, ICCS 2010).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, C, Lo, HK, Liang, K & Hsu, C 2010, A cross-layer design for per-flow and weighted fairness between uplink and downlink in WLANs. in 12th IEEE International Conference on Communication Systems 2010, ICCS 2010., 5686519, 12th IEEE International Conference on Communication Systems 2010, ICCS 2010, pp. 421-425, 12th IEEE International Conference on Communication Systems 2010, ICCS 2010, Singapore, Singapore, 2010/11/17. https://doi.org/10.1109/ICCS.2010.5686519

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AB - In this paper, we investigate a fairness issue between uplink and downlink flows in IEEE 802.11 Wireless Local Area Networks (WLANs). We propose a cross-layer adaptive algorithm which dynamically adjusts the minimum contention window size of Access Point (AP) according to the amount of downlink users and channel environments to achieve per-flow fairness. In case that uplink and downlink transmissions are with different bandwidth demands for various applications, our algorithm can efficiently find the optimal contention window size which provides weighted fairness based on their resource requirements. The simulation results demonstrate that our scheme can effectively provide both per-flow fairness and weighted fairness in a varying heterogeneous WLAN environment.

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A cross-layer design for per-flow and weighted fairness between uplink and downlink in WLANs

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