Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (4): 108-110.DOI: 10.3778/j.issn.1002-8331.2009.04.030
• 网络、通信、安全 • Previous Articles Next Articles
WANG Jun-yi
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王俊义
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Abstract: The paper studies the case that the download time or download success rate gain brought by random network coding,compared to store-and-forward mechanism,on the file-sharing program and the impact of Bit Error Ratio(BER) on random network coding’s performance in a collision-based wireless Mesh network.The simulation results show that,in the Blind-Forward node collaborative manner,when the number of source node is 1 and source node is randomly placed,random network coding can make download time reduce 30% to 40%.Furthermore,when the number of source node increases to 2,and the source nodes is placed fixedly,in both Blind-Forward and Selective-Forward node collaborative manners,compared to store-and-forward mechanism,the random network coding is greater extent in reducing download time.
摘要: 研究了在有冲突的无线Mesh网络中,相对于存储转发机制,随机网络编码对文件共享所带来的下载时间或下载成功率的增益,以及比特错误概率(Bit Error Ratio,BER)对随机网络编码性能的影响.仿真结果表明,当源节点数为1且随机放置时,在盲转发(Blind-Forward)节点协作方式下,随机网络编码能够将下载时间减少30%~40%。当源节点数为2且固定放置时,相对存储转发机制,在盲转发和选择性转发(Selective-Forward)节点协作方式下,采用随机网络编码均较大程度地减少了下载时间。
WANG Jun-yi. Benefit of random network coding for file-sharing[J]. Computer Engineering and Applications, 2009, 45(4): 108-110.
王俊义. 随机网络编码对文件共享的增益[J]. 计算机工程与应用, 2009, 45(4): 108-110.
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URL: http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2009.04.030
http://cea.ceaj.org/EN/Y2009/V45/I4/108