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Live data transfer strategies based on network coding P2P

Author: LiYaLong
Tutor: QinZhiGuang
School: University of Electronic Science and Technology
Course: Information and Communication Engineering
Keywords: Network coding P2P live Data transmission strategy Controlled push Data redundancy
CLC: TP393.01
Type: Master's thesis
Year: 2009
Downloads: 207
Quote: 2
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Abstract


Network coding is a new revolutionary network communication technology, which allows the nodes before forwarding data to be encoded, equality and irreplaceable data transmission network to improve network throughput. Linear random network coding theory matures, so that the large-scale application of network coding possible. Flourishing on the market for P2P live system, to enhance its core from the traditional idea of ??the store-and-forward data transfer performance inevitably will encounter technical bottlenecks. Under the conditions of this background, this article attempts to network coding technology into the P2P live system, to carry out the work of theoretical research and application development, the main work is as follows: (1) based on network coding and controlled push the P2P live data transmission strategy. In this paper, based on analysis of existing data transmission strategies problems, put forward a strategy based on network coding and controlled push NCCP (Network Coding with Controlled Push). The strategy is comprehensive to play the advantages of network coding and push mode to reduce the data transmission delay as an entry point to the effective control of the re-encoding data redundancy and multi-source push data redundancy, complete elimination of the focus at the same time introduced network coding technology brings high network robustness and good load balancing advantages. Addition, NCCP infrastructure for data transmission strategy is also designed: Improved Gossip network streaming media and dual queue buffer, as well as its supporting mechanism: the choice of particle size of the network coding and fixed startup delay play synchronization mechanism, thereby forming a set of complete new data transmission strategy solutions. (2) is designed and implemented a prototype based on the live network coding P2P system. The system developed in accordance with the standards of the software engineering process, using a simple and efficient hierarchical, modular design with the basic functions of the live system, provides a good basis for the evaluation of the actual performance of the data transmission strategy in a real network environment. (3) of the proposed strategy and implementation of the system a thorough test. In this paper, through simulation and prototyping system testing comprehensive analysis and evaluation of the data transfer strategy and the functionality and performance of the overall system. Distributed P2P simulation systems NCCP strategy and traditional strategies of key performance indicators detailed comparison test, simulation results show that the NCCP strategy data redundancy rate fell by only 0.21%, node startup performance and load balancing performance compared to the traditional strategy can achieve up to 60% significantly improved, reflecting the low transmission delay of network coding push mode combined with the advantages of high network robustness and good load balancing, etc.. NCCP strategy as well as the overall system within the campus network, the actual deployment of the prototype system, tested in practice, proved the feasibility of the strategy reflects the value of the practical application of network coding.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Theory of computer networks
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