NDLI: An Empirical Study of the Coolstreaming+ System

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IEEE Journal on Selected Areas in Communications - December

Table of Contents - December 2007- Vol. 25, No. 9 - Part Supplement

IEEE Communications Society

Near-Term Future of the Optical Network in Question?

Advances in Peer-to-Peer Streaming Systems [Guest Editorial]

Optimization of Semi-Dynamic Lightpath Rearrangements in a WDM Network

Characterizing Peer-to-Peer Streaming Flows

A Reinforcement Learning Framework for Path Selection and Wavelength Selection in Optical Burst Switched Networks

An Empirical Study of the Coolstreaming+ System

An Evaluation of Distributed Parallel Reservations in Wavelength-Routed Networks

Inferring Network-Wide Quality in P2P Live Streaming Systems

Optimal Wavelength Sharing Policies in OBS Networks Subject to QoS Constraints

R2: Random Push with Random Network Coding in Live Peer-to-Peer Streaming

Dynamic Traffic Grooming in Optical Networks with Wavelength Conversion

Graph Based Analysis of Mesh Overlay Streaming Systems

Network Dimensioning under Scheduled and Random Lightpath Demands in All-Optical WDM Networks

Understanding the Power of Pull-Based Streaming Protocol: Can We Do Better?

Rapid and Efficient Protection for All-Optical WDM Mesh Networks

A Comparison of Resilient Overlay Multicast Approaches

Achieving Shared Protection for Dynamic Multicast Sessions in Survivable Mesh WDM Networks

Push-to-Peer Video-on-Demand System: Design and Evaluation

Using Topology Aggregation for Efficient Shared Segment Protection Solutions in Multi-Domain Networks

VMesh: Distributed Segment Storage for Peer-to-Peer Interactive Video Streaming

On Traffic Allocations in Optical Packet Switches

Enabling Confidentiality of Data Delivery in an Overlay Broadcasting System

Spectral Efficiency Study of QC-CHPCs in Multirate Optical CDMA System

Peer to Peer Networks for Defense Against Internet Worms

IEEE Communications Society 2007 Board of Governors

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An Empirical Study of the Coolstreaming+ System

Content Provider	IEEE Xplore Digital Library
Author	Bo Li Susu Xie Keung, G.Y. Jiangchuan Liu Stoica, I. Hui Zhang Xinyan Zhang
Copyright Year	1983
Abstract	In recent years, there has been significant interest in adopting the peer-to-peer (P2P) technology for Internet live video streaming. There are primarily two reasons behind this development: the elimination of infrastructure support and the self-scaling property of P2P systems. The success of our system Coolstreaming represented one of the earliest large-scale P2P video streaming experiments. Since then, there have been several large-scale commercial deployments. With desirable content, these systems have the potential to scale orders of magnitude beyond the existing academic P2P prototypes. However, to transform this potential into reality, we need to understand the key design trade-offs and principles, as well as the design limitations of these systems. There are two main design decisions in a P2P streaming system: (i) How to form an overlay, and (ii) How to deliver the content. Coolstreaming adopts a gossiping protocol for overlay construction, and a swarm-based protocol for content delivery. While these protocols provide excellent flexibility and effectiveness in dealing with system dynamics and random failure, their impact on the performance and the system scalability remain less known. This paper takes an inside look at a commercial system based on the Coolstreaming, called Coolstreaming+. We explore its design choices and the impact of these choices on streaming performance. Specifically, by using internal traces generated by recent live broadcast events, we study the workload, performance, and dynamics of the system. Based on these traces, we show that (1) the churn is the most critical factor that affects the overall performance of the system, and (2) there is a highly skew resource distribution in P2P streaming systems, which has significant impact on resource allocation. We further discuss the impact of these observations on the system properties, and present solutions to deal with various design challenges. In particular, we suggest solutions to deal with the excessive start-up time and high failure rates during flash crowd, which are two of the main challenges any streaming system needs to address.
File Size	2052584
File Format	PDF
ISSN	07338716
Volume Number	25
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Peer to peer computing Streaming media Internet Protocols Computer science Large-scale systems Resource management Prototypes Scalability Broadcasting
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Electrical and Electronic Engineering

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