Adaptive Error Resilience for Video Streaming. (7th May 2009)

• Record Type: Journal Article
• Authors: Siruvuri, Lakshmi R.; Salama, Paul; Kim, Dongsoo S.
• Other Names: Ciccarelli Lorenzo Academic Editor.
• Is Part Of: International journal of digital multimedia broadcasting. Volume 2009(2009)
• Publication Date: 2009-05-07
• Subjects: Multimedia communications -- Periodicals; Digital audio broadcasting -- Periodicals; Mobile communication systems -- Periodicals; Digital audio broadcasting; Mobile communication systems; Multimedia communications; Periodicals; 621.382
• DOI: 10.1155/2009/681078
• Languages: English
• ISSNs: 1687-7578

Abstract

Abstract : Compressed video sequences are vulnerable to channel errors, to the extent that minor errors and/or small losses can result in substantial degradation. Thus, protecting compressed data against channel errors is imperative. The use of channel coding schemes can be effective in reducing the impact of channel errors, although this requires that extra parity bits to be transmitted, thus utilizing more bandwidth. However, this can be ameliorated if the transmitter can tailor the parity data rate based on its knowledge regarding current channel conditions. This can be achieved via feedback from the receiver to the transmitter. This paper describes a channel emulation system comprised of a server/proxy/client combination that utilizes feedback from the client to adapt the number of Reed-Solomon parity symbols used to protect compressed video sequences against channel errors.