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Adaptive TXOP assignment for QoS support of video traffic in IEEE 802.11e networks


Citation

Al-Maqri, Mohammed Ahmed Mohammed and Othman, Mohamed and Mohd Ali, Borhanuddin and Mohd Hanapi, Zurina (2013) Adaptive TXOP assignment for QoS support of video traffic in IEEE 802.11e networks. In: 2013 IEEE International RF and Microwave Conference (RFM2013), 9-11 Dec. 2013, Bayview Beach Resort Penang, Malaysia. (pp. 144-149).

Abstract

Quality of Service (QoS) is provided in IEEE 802.11eprotocol by means of HCF Controlled Channel Access (HCCA) scheduler which is efficient for supporting Constant Bit Rate (CBR) applications. Numerous researches have been carried out to enhance the HCCA scheduler attempting to accommodate the needs of Variable Bit Rate (VBR) video traffics which probably demonstrates a non-deterministic profile during the time. This paper presents an adaptive TXOP assignment mechanism for supporting the transmission of the prerecorded video traffics over IEEE 802.11e wireless networks. The proposed mechanism uses a feedback about the size of the subsequent video frames of the uplink traffic to assist the Hybrid Coordinator (HC) accurately assign TXOP according to the fast changes in the VBR profile. The simulation results show that our mechanism reduces the delay experienced by VBR traffic streams comparable to HCCA scheduler due to the accurate assignment of the TXOP which preserve the channel time for data transmission.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Computer Science and Information Technology
Faculty of Engineering
DOI Number: https://doi.org/10.1109/RFM.2013.6757236
Publisher: IEEE
Keywords: TXOP; Video traffics; IEEE 802.11e networks; QoS
Depositing User: Nabilah Mustapa
Date Deposited: 04 Aug 2020 02:37
Last Modified: 04 Aug 2020 02:37
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/RFM.2013.6757236
URI: http://psasir.upm.edu.my/id/eprint/44890
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