NDLI: Reliable scalable video streaming using layer weight switching-based unequal Luby transform

Content Provider	IET Digital Library
Author	Ha, H. Ryu, E. S.
Abstract	A layer weight switching-based unequal Luby transform (LWS-ULT) method is proposed to minimise video distortion over packet-lossy networks. The proposed ULT method divides all quality layers into more important set (MIS) and less important set to provide unequal packet protection property in LT codes based on error propagation effects. The number of quality layer in MIS is adjusted in accordance with channel status. At high packet loss rate, lower number of quality layer is assigned into MIS for more protection of quality layer with larger error propagation weight. On the other hand, higher number of quality layer is included in MIS for improving video quality by expanding the range of protection at low packet loss rate. Simulation results demonstrate that the proposed LWS-ULT method gives robust performance and significantly improved video quality (0.9–1.2 dB in Y-PSNR), compared with the conventional ULT schemes.
Starting Page	357
Ending Page	359
Page Count	3
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 5, Mar (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2015.3093
Journal	Electronics Letters
Publisher Date	2016-01-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Channel Status Error Propagation Effect Layer Weight Switching Based Unequal Luby Transform Method Low Packet Loss Rate LT Code LWS-ULT Method MIS More Important Set Packet Loss Rate Packet Lossy Network Reliability Reliable Scalable Video Streaming Telecommunication Network Reliability Unequal Packet Protection Property Video Distortion Video on Demand And Video Servers Video Quality Video Streaming
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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