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内蒙古自治区呼和浩特市赛罕区大学西街235号 邮编: 010021
作者机构:Natl Cheng Kung Univ Dept Comp Sci & Informat Engn Lab Multimedia Mobile Networking Tainan 70101 Taiwan
出 版 物:《JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS》 (J Chin Inst Eng Trans Chin Inst Eng Ser A)
年 卷 期:2014年第37卷第6期
页 面:731-740页
核心收录:
学科分类:12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学]
基 金:National Science Council of the Republic of China, Taiwan [NSC 100-2219-E-006-002] Intel Microelectronics Asia Ltd., Taiwan Branch
主 题:P2P streaming scalable video coding multiple description coding buffer control
摘 要:Peer-to-peer (P2P) video streaming applications are widely popular, e. g. PPstream and PPlive, because of higher transmission speed and data availability. A fact of P2P streaming is that different peers have different (asymmetric) capabilities for resource sharing, and thus, some asymmetric P2P (A-P2P) topology and membership management schemes should be adopted among P2P nodes having heterogeneous computing and communicating capabilities. Our research focuses on designing a novel A-P2P streaming architecture with a dedicated codec scheme that applies multiple description features into the scalable extension of H.264/AVC, which is adaptive and error-robust enough to tackle challenges in the A-P2P network environment. In the streaming architecture, our proposed device-aware P2P topology management is responsible for constructing a hierarchical membership-tree based on the capacity of upstream bandwidth and round-trip time. In addition, the buffer-aware scheduling scheme is able to determine whether the peer needs to reconnect to a proper source provider or not, based on the buffer status. In our experiments, corresponding performances, e.g. average peer-join time and average peak signal-to-noise ratio, were measured and demonstrated.