TY - GEN
T1 - Efficient substream encoding and transmission for P2P video on demand
AU - Liu, Zhengye
AU - Shen, Yanming
AU - Panwar, Shivendra
AU - Ross, Keith W.
AU - Wang, Yao
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - In a P2P VoD system, the rate at which peers receive video fluctuates due to peer churn. Although scalable video coding has the potential to adapt to long-term rate variations, existing scalable video schemes have not been tailored for P2P systems for which substreams emanate from churning peers. In this paper we propose a new multi-stream coding and transmission scheme, Redundancy-Free Multiple Description (RFMD) Coding and Transmission, that has been designed for P2P VoD systems. Unlike layered video, with RFMD all substreams have equal importance. Thus, video quality gracefully degrades as substreams are lost, independently of which particular substreams are lost. Furthermore, only the source bits are collectively transmitted by the supplying peers. Thus, all transmitted bits contribute to improve video quality. Finally, RFMD can be used to create any number of descriptions. We conduct an extensive simulation study, comparing single layer coding with high-rate erasure codes, layered coding, multiple description coding (MD-FEC) and RFMD. The simulations show that RFMD performs best in a variety of representative scenarios.
AB - In a P2P VoD system, the rate at which peers receive video fluctuates due to peer churn. Although scalable video coding has the potential to adapt to long-term rate variations, existing scalable video schemes have not been tailored for P2P systems for which substreams emanate from churning peers. In this paper we propose a new multi-stream coding and transmission scheme, Redundancy-Free Multiple Description (RFMD) Coding and Transmission, that has been designed for P2P VoD systems. Unlike layered video, with RFMD all substreams have equal importance. Thus, video quality gracefully degrades as substreams are lost, independently of which particular substreams are lost. Furthermore, only the source bits are collectively transmitted by the supplying peers. Thus, all transmitted bits contribute to improve video quality. Finally, RFMD can be used to create any number of descriptions. We conduct an extensive simulation study, comparing single layer coding with high-rate erasure codes, layered coding, multiple description coding (MD-FEC) and RFMD. The simulations show that RFMD performs best in a variety of representative scenarios.
UR - http://www.scopus.com/inward/record.url?scp=48649101725&partnerID=8YFLogxK
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U2 - 10.1109/PACKET.2007.4397036
DO - 10.1109/PACKET.2007.4397036
M3 - Conference contribution
AN - SCOPUS:48649101725
SN - 1424409810
SN - 9781424409815
T3 - PACKET VIDEO 2007 - 16th International Packet Video Workshop
SP - 143
EP - 152
BT - PACKET VIDEO 2007 - 16th International Packet Video Workshop
PB - IEEE Computer Society
T2 - PACKET VIDEO 2007 - 16th International Packet Video Workshop
Y2 - 12 November 2007 through 13 November 2007
ER -