网络编码技术在分布式内容分发中的应用

上海大学学报(自然科学版)

网络编码技术在分布式内容分发中的应用

邹君妮，李乐扬，谭冲

上海大学通信与信息工程学院，上海 200072

收稿日期:2007-02-07 修回日期:1900-01-01 出版日期:2007-08-20 发布日期:2007-08-20
通讯作者: 邹君妮

Network Coding in Decentralized Content Distribution

ZOU Jun-ni, LI Le-yang, TAN Chong

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2007-02-07 Revised:1900-01-01 Online:2007-08-20 Published:2007-08-20
Contact: ZOU Jun-ni

摘要/Abstract

摘要： 结合图论及有限域运算的相关知识，详细阐述了网络编码技术的编解码原理、优点及其应用领域.针对分布式内容分发系统，讨论比较了分别采用不编码、纠删码和网络编码三种方式对数据进行处理的优缺点，并且从理论分析和仿真实验两方面验证了网络编码在内容分发领域的优越性能.最后，指明了未来网络编码在实际应用中的发展方向.

关键词: 对等网络, 内容分发, 网络编码, 组播

Abstract: Based on the graph theory and finite field operation, this paper introduces the principle of network coding and its applications. For a decentralized content distribution network, three coding mechanisms including uncoded distribution, erasure coding based distribution and network coding based distribution are discussed. The excellent performance of network coding based content distribution is demonstrated with both theoretic analysis and computer simulation experiments. Key issues in practical network coding are presented.

Key words: content distribution, multicast
, P2P, network coding

中图分类号:

TP393

邹君妮;李乐扬;谭冲. 网络编码技术在分布式内容分发中的应用[J]. 上海大学学报(自然科学版).

ZOU Jun-ni;LI Le-yang;TAN Chong. Network Coding in Decentralized Content Distribution [J]. Journal of Shanghai University（Natural Science Edition）.