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http://dx.doi.org/10.9728/dcs.2011.12.4.485

Enhanced Smoothing Algorithm Using GOP Unit  

Lee, Myoun-Jae (백석대학교 정보통신학부 멀티미디어전공)
Publication Information
Journal of Digital Contents Society / v.12, no.4, 2011 , pp. 485-490 More about this Journal
Abstract
Smoothing is a transmission plan where variable rate video data is converted to a constant bit rate stream. These smoothing algorithms include CBA, MCBA, MVBA, PCRTT and others. But, these algorithms build a transmission plan per frame unit. So, these algorithms cause frame burst or GOP burst. In order to improve it, MVBAG algorithm build a transmission plan per GOP. But this algorithm may not guarantee QoS when frame's size is abruptly larger or smaller than the computed transmission rate. In this paper, a smoothing algorithm is proposed to enhance MVBAG algorithm's problem. In order to show the proposed algorithm's performance, the proposed algorithm is compared with MVBAG algorithm using various evaluation factors such as number of frames that do not meet the QoS, average transmission rate variability per frame, average transmission rate variability per GOP. Experimental results show that the proposed algorithm outperforms MVBAG algorithm in number of frames that do not meet the QoS.
Keywords
GOP; Smoothing Algorithm; MPEG; Transmission Plan; Best-Effort Service; QoS;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 이면재.이준용, 박도순, "가변 비트율 비디오 전송을 위한 효율적인 스무딩 알고리즘" , 정보처리학회논문지C, 제11-1C권 제 7호, 2004.12
2 D. Le Gall, "MPEG: A video compression standard for multimedia applications", Communications of the ACM, vol.34, pp.47-58, April 1991.
3 Wu-chi Feng, Ming Liu, "Critical Bandwidth Allocation Technique for Stored Video Delivery Across Best-Effort Network", pp.25, (OSU- CISRC-8/98-TR32) Electronic report under 1998/TR32.ps.
4 Wu-Chi Feng, Ming Liu, "Extending critical bandwidth allocation Techniques for stored video delivery across best-effort networks", International Journal of COMMUNICATION SYSTEMS, Vol.14, pp.925-940, Sep 2001.   DOI   ScienceOn
5 W. Feng, S. Sechrest, "Critical Bandwidth Allocation for the Delivery of Compressed Prerecorded Video," Computer Communications, Vol.18, No.10, pp.709-717, Oct 1995.   DOI   ScienceOn
6 곽준원, MPEG의 특성을 이용한 최소 변화폭 전송률 조절 알고리즘, 홍익대학교. 2003.
7 곽준원, 이면재, 송하윤, 박도순, "MPEG 동영상 전송을 위한 GOP 단위의 최소 변경 대역폭 할당 기법", 한국정보처리학회논문지C, 제9-C권 제 5호, 2002.10.
8 J.D. Salehi, et. al., "Supporting stored video: Reducing rate variability and end-to-end resource requirements through optimal smoothing", in Proc. of ACM SIGMETRICS, pp.222-231, May 1996.
9 W. Feng and J. Rexford, "Performance evaluation of smoothing algorithms for transmitting prerecorded VBR video", IEEE Trans. on Multimedia, September 1999.
10 Wu-chi Feng, "A Comparison of Bandwidth Smoothing Techniques for the Transmission of Prerecorded Compressed Video", in Proc. IEEE INFOCOM, pp.58-66, April 1997.
11 W.Feng, F.Jahanian, S.Sechrest, "An Optimal Bandwidth Allocation Strategy for the Delivery of Compressed Prerecoded Video", ACM/Springer-Verlag Multimedia Systems, vol. 5, no. 5, pp.297-309, Sept 1997.   DOI   ScienceOn
12 http://www.cis.ohio-state.edu/-wuchi.