Robust real-time transmission of scalable multimedia for heterogeneous client bandwidths

doi:10.1016/j.rti.2005.05.001

	Robust real-time transmission of scalable multimedia for heterogeneous client bandwidths
	Huo, LS ; Gao, W ; Huang, QM
	2005-08-01
发表期刊	REAL-TIME IMAGING
ISSN	1077-2014
卷号	11 期号:4 页码:300-309
摘要	For robust real-time transmission of scalable image and video data over packet-loss networks, a commonly used approach is FEC-based multiple description coding, which protects a scalable bitstream with a fixed number of packets of equal length. In this paper, by considering the problem of applying this approach of multicasting a source to a collection of clients with heterogeneous bandwidths, we propose a novel technique that changes packet length but fixes packet number. In one scenario where different clients access the server via separate links, we study the sensitivity of an optimal solution to the change of packet length, and propose a local search procedure which refines the already computed optimal solutions for other bandwidths. Compared to the scheme that computes an optimal solution individually for each bandwidth, this procedure can achieve comparable performance, however with quite lower time complexity, thus can be used in real-time applications. In another scenario where many clients share a bottleneck link, we present an embedded packetization framework for layered multiple description coding, in which even simple methods with low complexities can achieve good performance. We also propose a local search algorithm to optimize the weighted average performance in case of two layers, and a fast heuristic algorithm which can achieve very good performance tradeoff among all clients in case of more than two layers. (c) 2005 Elsevier Ltd. All rights reserved.
DOI	10.1016/j.rti.2005.05.001
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Software Engineering ; Computer Science, Theory & Methods
WOS记录号	WOS:000231655500005
出版者	ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/10097
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Huo, LS
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Huo, LS,Gao, W,Huang, QM. Robust real-time transmission of scalable multimedia for heterogeneous client bandwidths[J]. REAL-TIME IMAGING,2005,11(4):300-309.
APA	Huo, LS,Gao, W,&Huang, QM.(2005).Robust real-time transmission of scalable multimedia for heterogeneous client bandwidths.REAL-TIME IMAGING,11(4),300-309.
MLA	Huo, LS,et al."Robust real-time transmission of scalable multimedia for heterogeneous client bandwidths".REAL-TIME IMAGING 11.4(2005):300-309.