Inter-frame space (IFS)-based distributed fair queuing in IEEE 802.11 WLANs

Jeng Farn Lee; Wanjiun Liao; Meng Chang  Chen

2nd International ICST Conference on Broadband Networks

Research Article

Inter-frame space (IFS)-based distributed fair queuing in IEEE 802.11 WLANs

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/ICBN.2005.1589674,
    author={Jeng Farn Lee and Wanjiun Liao and Meng Chang  Chen},
    title={Inter-frame space (IFS)-based distributed fair queuing in IEEE 802.11 WLANs},
    proceedings={2nd International ICST Conference on Broadband Networks},
    publisher={IEEE},
    proceedings_a={BROADNETS},
    year={2006},
    month={2},
    keywords={},
    doi={10.1109/ICBN.2005.1589674}
}

Jeng Farn Lee
Wanjiun Liao
Meng Chang Chen
Year: 2006
Inter-frame space (IFS)-based distributed fair queuing in IEEE 802.11 WLANs
BROADNETS
IEEE
DOI: 10.1109/ICBN.2005.1589674

Jeng Farn Lee^1,2, Wanjiun Liao^1,3^,*, Meng Chang Chen²

1: Department of Electrical Engineering, Na tional Taiwan University, Taipei, Taiwan
2: Institute of Information Science, Academia Sinica, Taipei, Taiwan
3: Graduate Institute of Communication Engineering, National Taiwan University, Taipei, Taiwan

*Contact email: wjliao@ntu.edu.tw

Abstract

In this paper, we study fair queuing in the MAC layer of IEEE 802.11 with the distributed coordination function (DCF). In particular, we propose an IFS-based distributed fair queuing (IDFQ) mechanism to provide differentiated service in conformance with the 802.11 standard. IDFQ is designed to emulate self-clocked fair queuing (SCFQ) in a distributed manner. There is no backoff in IDFQ. Thus, it provides better stability and improved aggregate throughput, as compared to existing work. Simulation results show that IDFQ supports differentiated service for different flows in proportion to their weights. More importantly, it outperforms existing solutions in terms of fairness and stability, rendering IDFQ an excellent candidate to provide weighted fairness for IEEE 802.11 WLANs.

Published: 2006-02-13
Publisher: IEEE

: http://dx.doi.org/10.1109/ICBN.2005.1589674