priority linear coding based opportunistic routing for video streaming in ad hoc networks

	priority linear coding based opportunistic routing for video streaming in ad hoc networks
	Zhi Li ; Limin Sun ; Xinyun Zhou ; Liqun Li
	2010
会议名称	53rd IEEE Global Communications Conference, GLOBECOM 2010
会议日期	40883
会议地点	Miami, FL
关键词	H.264 video streaming OR-PLC mechanism error propagation error protection priorities multihop ad hoc networks priority linear coding-based opportunistic routing progressive decoding progressive encoding video packets video quality ad hoc networks linear codes telecommunication network routing video coding video streaming
页码	40548
英文摘要	In this paper, we propose a priority (or progressive) linear coding based opportunistic routing mechanism (OR-PLC) for H.264 video streaming over multi-hop ad hoc networks. OR-PLC assigns different error protection priorities to video packets according to their perceptual importance to mitigate error propagation problem so that the video quality is enhanced in receiver. Furthermore, OR-PLC exploits the broadcast feature of wireless medium to improve the bandwidth utility. Compared with other opportunistic routing schemes, OR-PLC reduces the delay by progressive encoding and decoding. The experiments show that our mechanism outperforms two state-of-the-art schemes, i.e., MORE and MP-RTP. It turns out that OR-PLC delivers more than 3.5 dB PSNR gains in average, while using less bandwidth.
会议录	GLOBECOM - IEEE Global Telecommunications Conference
会议录出版地	United States
ISBN号	978-1-4244-5636-9
内容类型	会议论文
源URL	[http://124.16.136.157/handle/311060/8856]
专题	软件研究所_基础软件国家工程研究中心_会议论文
推荐引用方式 GB/T 7714	Zhi Li,Limin Sun,Xinyun Zhou,et al. priority linear coding based opportunistic routing for video streaming in ad hoc networks[C]. 见:53rd IEEE Global Communications Conference, GLOBECOM 2010. Miami, FL. 40883.