Chunk Distribution in Mesh-Based Large-Scale P2P Streaming Systems: A Fluid Approach

作     者：Couto da Silva, Ana Paula Leonardi, Emilio Mellia, Marco Meo, Michela 

作者机构：Univ Fed Juiz de Fora ICE Dept Comp Sci BR-36036330 Juiz De Fora MG Brazil Politecn Torino Dipartimento Elettron I-10129 Turin Italy 

出 版 物：《IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS》 (IEEE Trans Parallel Distrib Syst)

年 卷 期：2011年第22卷第3期

页      面：451-463页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：European Commission ICT Call [1 FP7-ICT-2007-1] 

主　　题：P2P streaming systems diffusion algorithms overlay fluid models 

摘      要：We consider large-scale mesh-based P2P systems for the distribution of real-time video content. Our goal is to study the impact that different design choices adopted while building the overlay topology may have on the system performance. In particular, we show that the adoption of different strategies leads to overlay topologies with different macroscopic properties. Representing the possible overlay topologies with different families of random graphs, we develop simple, yet accurate, fluid models that capture the dominant dynamics of the chunk distribution process over several families of random graphs. Our fluid models allow us to compare the performance of different strategies providing a guidance for the design of new and more efficient systems. In particular, we show that system performance can be significantly improved when possibly available information about peers location and/or peer access bandwidth is carefully exploited in the overlay topology formation process.