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Full-Text Articles in Computer Engineering
Efficient Peer Assignment For Low-Latency Transmission Of Scalable Coded Images, Xiao Su, Tao Wang
Efficient Peer Assignment For Low-Latency Transmission Of Scalable Coded Images, Xiao Su, Tao Wang
Faculty Publications
In this paper, we propose efficient peer assignment algorithms for low-latency transmission of scalable coded images in peer-to-peer networks, in which peers may dynamically join and leave the networks. The objective of our algorithm is to minimize the transmission time of a requested image that is scalable coded. When an image is scalable coded in different bit rates, the bit stream encoded in a lower bit rate is a prefix subset of the one encoded in a higher bit rate. Therefore, a peer with the same requested image coded in any bit rate, even when it is different from the …
Sequence Of Linear Programming For Transmission Of Fine-Scalable Coded Content In Bandwidth-Limited Environments, Xiao Su, Tao Wang
Sequence Of Linear Programming For Transmission Of Fine-Scalable Coded Content In Bandwidth-Limited Environments, Xiao Su, Tao Wang
Faculty Publications
In this paper, we propose an optimal peer assignment algorithm on peer-to-peer networks. This algorithm is designed to maximize the quality of transmitting fine-scalable coded content by exploiting the embedding property of scalable coding. To be more realistic, we assume that the requesting peer has a delay constraint to display the content within a certain delay bound, and it also has limited incoming bandwidth. We first use a simple example to illustrate the peer assignment problem, and then formulate this problem as a linear programming problem, followed by a nonlinear programming problem. To efficiently solve the second nonlinear problem, we …
Delay-Constrained Transmission Of Fine Scalable Coded Content Over P2p Networks, Xiao Su, Yi Shang, Tao Wang, Yuqing Mai
Delay-Constrained Transmission Of Fine Scalable Coded Content Over P2p Networks, Xiao Su, Yi Shang, Tao Wang, Yuqing Mai
Faculty Publications
Images or videos are generally coded before transmission, and they can be either non-scalable coded or scalable coded, which can be further classified into fine-scalable coded and coarse-scalable coded. In this paper, we focus on delivery of fine-scalable coded content. The objective of our work is to design algorithms to optimize the quality of fine-scalable coded images or videos on peer-to-peer networks when a requesting peer is delay-sensitive and has to display content within a certain delay bound. Fine-scalable coding has two properties: (1) it embeds lower bit-rate bitstreams into higher bit-rate bitstreams; and (2) its coding quality increases with …