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An Active Buffer Management Mechanism to Guarantee the Qos of the Streaming Service in IEEE 802.11e EDCA  

Lee, Kyu-Hwan (아주대학교 전자공학과 무선 인터넷 연구실)
Lee, Hyun-Jin (아주대학교 전자공학과 무선 인터넷 연구실)
Kim, Jae-Hyun (아주대학교 전자공학과 무선 인터넷 연구실)
Roh, Byeong-Hee (아주대학교 정보 및 컴퓨터 공학과 이동 멀티미디어 통신 네트워크 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.8B, 2009 , pp. 751-759 More about this Journal
Abstract
Due to the advance of WLAN technology, the use of the multimedia service such as the video streaming service has been increased in the home network. However, we need to study the method which decreases the transmission delay and the frame loss rate to provide QoS of the video streaming service. Therefore, this paper proposes an active buffer management mechanism to guarantee QoS of the streaming service in IEEE 802.11e EDCA. The proposed protocol discards the frame in the HoL of the buffer based on the importance of each frame and the virtual transmission delay of frame newly arriving at the buffer. In the simulation results, the proposed algorithm not only decreases the frame loss probability of important I and P frames but also stabilizes the transmission delay. It may increase the QoS of video streaming services.
Keywords
EDCA; Buffer management; Video streaming; wireless LAN; TSPEC;
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