QQ客服 官方微博 反馈留言

	Optimal packet length and recursive mode decision for live video streaming over ad hoc wireless networks
	Huang Feng ; Sun Lifeng ; Zhong Yuzhuo
	2010-05-06 ; 2010-05-06
关键词	ad hoc wireless network bursty packet losses low delay streaming intra/inter mode decision error resilient H.264 Engineering, Electrical & Electronic
中文摘要	For live video streaming over ad hoc networks, high bandwidth requirements are coupled with delay constraints. Based on the queuing model, we propose an analytical method to figure out the optimal packet length for each link. The approach captures the influence of link capacity, source-video rate and header overhead, which can be used to minimize the end-to-end delay. It also guarantees stable video playout and is practical. Packet losses over ad hoc wireless networks often occur in bursts, which may cause substantial degradation to the transmitted video quality. To achieve robust video streaming over a bandwidth-limited ad hoc network, we propose a recursive mode decision algorithm, called CROPE (Conditional recursive optimal pixel estimate). We intend to make our H.264 error-resilient encoder capture the bursty nature of the packet losses and effectively stop error propagation. Based on the conditional probability of burst error, CROPE improves the accuracy of the estimation when compared to ROPE (Recursive optimal pixel estimate)The simulation results under different simulation conditions show that the proposed algorithm has robust error resilient ability and good adaptability. It yields consistent and significant gains over the competing methods in a wide range of bitrate, transition probability and burst length. Moreover, CROPE has low computational complexity and is suitable for multicast applications.
语种	英语 ; 英语
出版者	TECHNOLOGY EXCHANGE LIMITED HONG KONG ; SHATIN ; 26-28 AU PUI WAN ST, STE 1102, FO TAN INDUSTRIAL CENTRE, FO TAN, SHATIN, 00000, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/9711]
专题	清华大学
推荐引用方式 GB/T 7714	Huang Feng,Sun Lifeng,Zhong Yuzhuo. Optimal packet length and recursive mode decision for live video streaming over ad hoc wireless networks[J],2010, 2010.
APA	Huang Feng,Sun Lifeng,&Zhong Yuzhuo.(2010).Optimal packet length and recursive mode decision for live video streaming over ad hoc wireless networks..
MLA	Huang Feng,et al."Optimal packet length and recursive mode decision for live video streaming over ad hoc wireless networks".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。