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Research on Streaming Media System and Key Technology Based on CDN and P2P Hybrid Architecture

Author: XuGuang
Tutor: TangRuiChun
School: Ocean University of China
Course: Computer Software and Theory
Keywords: Streaming CDN P2P Stability Contribution Load balancing
CLC: TP393.02
Type: Master's thesis
Year: 2011
Downloads: 54
Quote: 1
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Abstract


With the rapid development of the Internet and personal computer performance, people are no longer satisfied merely traditional text web browser, mail, online chat application. Due to the unique entertainment and interactive streaming, it is more and more people of all ages, and became the fastest point of the Internet applications. By CDN and P2P advantages and disadvantages of the current way of CDN and P2P mainstream fusion research, the hybrid CDN and P2P network architecture HCPMSA (Hybrid CDN-P2P Streaming Media Service Architecture), In addition to the impact of system stability and efficiency The key technology research. The specific content and research work are as follows: (1) study the respective advantages and disadvantages of CDN and P2P technology, and now two of technology integration way. Designed that is reliable and easy to manage while scalability based on the architecture of CDN and P2P network architecture. (2) study the major factors affecting the stability of the system, through the analysis of the various factors of this article establish a mathematical model of the system stability, stable value through the system to the steady state of the system is divided into three levels. (3) study the current popular P2P node selection algorithm, to establish the reliability of the mathematical model; proposed based on the reliability of the P2P resource node selection algorithm, this algorithm considering the service node reliability, load balancing, and contribution The degree of the problem. (4) extension technology for streaming media encoding systems to stream media files are divided into different levels. User requests divided into different priority, a classification based on the stability of the system, prevention and recovery strategy. Means the policy of grading the media document classification, user priority classification and grading system stability. The experiments of this article is based on the Cygewin NS2 environment, tests the system throughput, the nodes in the system jitter rate request success rate, the results show that these aspects have a significantly improved. Description of the proposed design program to be able to guarantee a certain extent, the quality of service at the same time improve the stability of the system. The innovation of this paper are as follows: (1) design a use of CDN reliability, manageability and scalability of P2P technology CDN and P2P network architecture. (2) proposed the concept of a system of stable value according to the load on the system status and network status, design a grading system stable value prevention and recovery scheduling policy, designed based on the reliability of the P2P node selection algorithm This algorithm considering load balancing node, the node contribution node reliability problems.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Computer network architecture and design
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