Enhancing performance of feedback-Based QoS scheduling for video delivery over WLANs

Jeng Ji Huang; Po Chun Shen; Yu Ting Tseng

doi:10.1016/j.comcom.2016.07.002

Enhancing performance of feedback-Based QoS scheduling for video delivery over WLANs

Jeng Ji Huang^*, Po Chun Shen, Yu Ting Tseng

^*Corresponding author for this work

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

In IEEE 802.11e wireless local area networks (WLANs), it is well known that a feedback signaling for bandwidth allocation can help to increase bandwidth utilization. In order to evaluate feedback-based quality of service (QoS) scheduling in IEEE 802.11e WLANs, an analytical model is presented in this paper to calculate the rate of packet losses as a consequence of violation of their delay limits. Furthermore, an enhancement is proposed to reduce packet losses by speeding up the feedback signaling. It is demonstrated from both analytical results and ns-2 simulations that the packet loss rate can effectively be reduced under the proposed enhancement and more capacity for video flows can accordingly be obtained.

Original language	English
Pages (from-to)	77-83
Number of pages	7
Journal	Computer Communications
Volume	99
DOIs	https://doi.org/10.1016/j.comcom.2016.07.002
Publication status	Published - 2017 Feb 1

Keywords

IEEE 802.11E wireless local area networks (WLANs)
Packet loss rate
Quality of service (QoS)
Scheduling
Variable bit rate (VBR)
Video streaming

ASJC Scopus subject areas

Computer Networks and Communications

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10.1016/j.comcom.2016.07.002

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title = "Enhancing performance of feedback-Based QoS scheduling for video delivery over WLANs",

abstract = "In IEEE 802.11e wireless local area networks (WLANs), it is well known that a feedback signaling for bandwidth allocation can help to increase bandwidth utilization. In order to evaluate feedback-based quality of service (QoS) scheduling in IEEE 802.11e WLANs, an analytical model is presented in this paper to calculate the rate of packet losses as a consequence of violation of their delay limits. Furthermore, an enhancement is proposed to reduce packet losses by speeding up the feedback signaling. It is demonstrated from both analytical results and ns-2 simulations that the packet loss rate can effectively be reduced under the proposed enhancement and more capacity for video flows can accordingly be obtained.",

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AU - Shen, Po Chun

AU - Tseng, Yu Ting

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N2 - In IEEE 802.11e wireless local area networks (WLANs), it is well known that a feedback signaling for bandwidth allocation can help to increase bandwidth utilization. In order to evaluate feedback-based quality of service (QoS) scheduling in IEEE 802.11e WLANs, an analytical model is presented in this paper to calculate the rate of packet losses as a consequence of violation of their delay limits. Furthermore, an enhancement is proposed to reduce packet losses by speeding up the feedback signaling. It is demonstrated from both analytical results and ns-2 simulations that the packet loss rate can effectively be reduced under the proposed enhancement and more capacity for video flows can accordingly be obtained.

AB - In IEEE 802.11e wireless local area networks (WLANs), it is well known that a feedback signaling for bandwidth allocation can help to increase bandwidth utilization. In order to evaluate feedback-based quality of service (QoS) scheduling in IEEE 802.11e WLANs, an analytical model is presented in this paper to calculate the rate of packet losses as a consequence of violation of their delay limits. Furthermore, an enhancement is proposed to reduce packet losses by speeding up the feedback signaling. It is demonstrated from both analytical results and ns-2 simulations that the packet loss rate can effectively be reduced under the proposed enhancement and more capacity for video flows can accordingly be obtained.

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Enhancing performance of feedback-Based QoS scheduling for video delivery over WLANs

Abstract

Keywords

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