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Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/3289
Title: On maximizing tree bandwidth for topology-aware peer-to-peer streaming
Authors: Jin, Xing
Yiu, W.-P. Ken
Chan, Shueng-Han Gary
Wang, Yaujun
Keywords: Bandwidth allocation
Multimedia streaming
Peer-to-peer computing
Issue Date: 2007
Citation: IEEE transactions on multimedia, v. 9, no. 8, December 2007, p. 1580-1592
Abstract: In recent years, there has been an increasing interest in peer-to-peer (P2P) multimedia streaming. In this paper, we consider constructing a high-bandwidth overlay tree for streaming services. We observe that underlay information such as link connectivity and link bandwidth is important in tree construction, because two seemingly disjoint overlay paths may share common links on the underlay. We hence study how to construct a high-bandwidth overlay tree given the underlay topology. We formulate the problem as building a Maximum Bandwidth Multicast Tree (MBMT) or a Minimum Stress Multicast Tree (MSMT), depending on whether link bandwidth is available or not. We prove that both problems are NP-hard and are not approximable within a factor of (2/3 + ∈), for any ∈ > 0, unless P = NP. We then present approximation algorithms to address them and analyze the algorithm performance. Furthermore, we discuss some practical issues (e.g., group dynamics, resilience and scalability) in system implementation.We evaluate our algorithms on Internet-like topologies. The results show that our algorithms can achieve high tree bandwidth and low link stress with low penalty in end-to-end delay. Measurement study based on PlanetLab further confirms this. Our study shows that the knowledge of underlay is important for constructing efficient overlay trees.
Rights: © 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
URI: http://hdl.handle.net/1783.1/3289
Appears in Collections:CSE Journal/Magazine Articles

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