submitted to Replicate Multiple Descriptor Coding for Error Resilience in Wireless Video Broadcasting

in International Symposium (oral presentation paper), 國際研討會(全文口頭發表)
標題submitted to Replicate Multiple Descriptor Coding for Error Resilience in Wireless Video Broadcasting
出版類型國際研討會(全文口頭發表)
出版年度2010
AuthorsSheau-Ru Tong, 童曉儒, Yuan-Tse Yu 余遠澤, Che-Min Chen 陳哲民, & You-Chin Lin 林祐沁
出版日期Jul 16 2010 12:0
會議地點新加坡
其他編號0000
中文摘要

Wireless IP-based video broadcasting suffers from dynamic and heavy burst errors exhibited in the wireless links. This paper addresses this issue by proposing a transport-layer error-resilience scheme, called the replicate multiple descriptor coding scheme (RMD). In principle, RMD employs a multiple descriptor/channel transmission strategy with two unique features added. One is to introduce replicate key frames in distinct channels; the other is to apply a shifted transmission schedule. These two features effectively protect the key frames against corruption even under a heavy-burst-error situation and enhance the overall video quality. We show that compared with other schemes, RMD is fairly cost-effective in terms of PSNR improved and data overhead paid. It is particularly attractive to a wireless network that exhibits heavy channel error rate (e.g., 15%-35%).

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