A time slots coordination mechanism for IEEE 802.11 WLANs

Authors:
Alexander Leonovich;Huei-Wen Ferng
Affiliations:
Department of Computer Science and Information Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan;Department of Computer Science and Information Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
Venue:
IEEE Communications Letters
Year:
2010

Citing 2
Cited 1

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Mobile Networks and Applications
Quality-of-service in ad hoc carrier sense multiple access wireless networks

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A Novel Hybrid Slot Allocation Mechanism for 802.11e EDCA Protocol

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Abstract

A software-based time slots coordination mechanism (TSCM) for IEEE 802.11 WLANs is proposed in this letter to guarantee the quality of service (QoS) for voice traffic and avoid starvation for data traffic. With the complexity analysis, relative simplicity of TSCM is shown. Via simulations, we demonstrate that TSCM outperforms the enhanced distributed channel access (EDCA), hybrid coordination function (HCF) controlled channel access (HCCA), and Blackburst in terms of number of supported voice sessions, normalized throughput, and fairness index.