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An Admission Control Mechanism to guarantee QoS of Streaming Service in WLAN  

Kang, Seok-Won (아주대학교 전자공학과 무선 인터넷 연구실)
Lee, Hyun-Jin (아주대학교 전자공학과 무선 인터넷 연구실)
Lee, Kyu-Hwan (아주대학교 전자공학과 무선 인터넷 연구실)
Kim, Jae-Hyun (아주대학교 전자공학과 무선 인터넷 연구실)
Roh, Byeong-Hee (아주대학교 정보 및 컴퓨터 공학과 이동 멀티미디어 통신 네트워크연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.6B, 2009 , pp. 595-604 More about this Journal
Abstract
The HCCA reserves the channel resources based on the mean data rate in IEEE 802.11e. It may cause either the waste of channel resource or the increase of transmission delay at MAC layer if the frame size is rapidly varied when a compressed mode video codec such as MPEG video is used. To solve these problems, it is developed that the packet scheduler allocates the wireless resource adaptation by according to the packet size. However, it is difficult to perform the admission control because of the difficulty with calculating the available resources. In this paper, we propose a CAC mechanism to solve the problem that may not satisfy the QoS by increasing traffic load in case of using EDCA. Especially, the proposed CAC mechanism calculates the EB of TSs using the traffic information transmitted by the application layer and the number of average transmission according to the wireless channel environment, and then determines the admission of the TS based on the EB. According to the simulation results of the proposed CAC mechanism, it admitted the TSs under the loads which are satisfied within the delay bound. Therefore, the proposed mechanism guarantees QoS of streaming services effectively.
Keywords
WLAN; Streaming Service; QoS;
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  • Reference
1 IEEE 802.11 WG, Information Technology - Telecommunications and Information Exchange between Systems - Local and Metropolitan Area Networks - Specific Requirements. Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, in ISO/IEC 8802-11; ANSI/IEEE Std 802.11, 1999 edn, 1999
2 Video Trace Research Group : http://trace.eas.asu.edu/
3 D. Gao, and J. Cai, 'Admission control with physical rate measurement for IEEE 802.11e controlled channel access,' IEEE Communications Letters, Vol. 9, No. 8, Aug. 2005, pp. 694-696   DOI   ScienceOn
4 W. Fan, D. T.sang, and B. Bensaou, 'Admission control for variable bit rate traffic using variable service interval in IEEE 802.11e WLANs,' in Proc. ICCCN 2004. Chicago, USA, 11-13, Oct., 2004, pp. 447 - 453   DOI
5 P. Ansel, Q. Ni, and T. Turletti, 'FHCF: A fair scheduling scheme for 802.11e WLAN,' INRIA Research Report No 4883, Jul. 2003. Implementation and simulations available from http://planete.inria.fr/qni/fhcf/
6 T. Yoo, R. J. Lavery, A. Goldsmith, and D. Goodman, 'Throughput Optimization Using Adaptive Technique,' Technical Report, Wireless Systems Lab, Stanford University, CA, USA, 2004
7 Q. Li, and M. Schaar, 'Providing Adaptive QoS to Layered Video Over Wireless Local Area Networks Through Real-Time Retry Limit Adaptation,' IEEE Transaction on Multimedia, Vol. 6, No. 2, April, 2004   DOI   ScienceOn