NDLI: Adaptive EDCA Algorithm Using Video Prediction for Multimedia IEEE 802.11e WLAN

Content Provider	IEEE Xplore Digital Library
Author	Huabing Liu Yun Zhao
Copyright Year	2006
Description	Author affiliation: Univ. of Sydney, Sydney (Huabing Liu)
Abstract	The IEEE 802.11e is a new standard to support QoS in Wireless LAN (WLAN). A concept called transmission opportunity (TXOP) has been proposed in 802.11e to confine the maximum time duration that a station can be allowed to retain the channel after winning a contention or receiving a QoS- poll from the QAP. Multiple frames can be transmitted within one acquired TXOP without any additional contention or QoS- poll as long as the total transmission time does not exceed the TXOP duration. The 802.11e standard provides the capability to adjust the TXOP value, but it does not specify how this can be accomplished. Real-time video applications such as video streaming and video conferencing which present Variable Bit Rate (VBR) characteristics may need the TXOP to be adaptive to their time varying characteristics. In this paper, we propose an adaptive EDCA TXOP method to improve the QoS support for VBR video transmission under EDCA mode over IEEE 802.11e WLAN. This method takes into account the estimated incoming video frame size and the current transmit queue length to tune the EDCA TXOP after winning a contention. Simulations using real MPEG-1 encoded VBR video trace indicate that our proposed method achieves better QoS support for VBR video traffic than the 802.11e default EDCA TXOP.
Starting Page	10
Ending Page	10
File Size	178346
Page Count	1
File Format	PDF
ISBN	0769526292
DOI	10.1109/ICWMC.2006.16
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-29
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Availability Wireless LAN USA Councils Bit rate Streaming media Traffic control Prediction algorithms Videoconference Counting circuits HDTV
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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