针对大文件的多流多宿主传输控制研究  

RESEARCH ON MULTI-STREAM MULTIHOMED TRANSMISSION CONTROL FOR BIG FILES

作　　者：金珊[1] 王煜坚[1] 孙权[2] 徐宏力[2] 

机构地区：[1]上海贝尔股份有限公司网络与平台集团,上海201206 [2]中国科学技术大学苏州研究院,江苏苏州215123

出　　处：《计算机应用与软件》2015年第5期149-152,共4页Computer Applications and Software

基　　金：国家科技重大专项(2012ZX03005009)

摘　　要：泛在网场景下的多流多宿主技术能提高网络传输的效率和可靠性。已有的研究工作通常利用该技术以提高多个文件并发传输的效率,而这些方法并不适用于针对单个大文件的并发传输。因此,研究了多流多宿主网络环境下的单文件传输控制方法,提出了文件递归分割算法以拓展多流并发传输特性,进而设计了递归分割算法和文件递归重组算法将分割的文件进行重组,以保证文件传输的高效性与完整性。在2个宿主网络的模拟实验环境下,设计的多流传输机制相比传统传输方法性能有明显的提高。In the Ubiquitous Networks scenario, the multi-stream multihomed technology can improve efficiency and reliability of networks transmission. Previous researches mainly focus on improving the parallel transmission efficiency for multiple files with this technology usually, however these achievements do not fit for the parallel transmission of single large files. Therefore we mainly study the transmission and control approach for single files in multi-stream multihomed environment, and propose the recursive file segmentation algorithm to expand the multi- stream parallel transmission characteristic, then design recursive segmentation algorithm and recursive file recombination algorithm to recom- bine the segmented files so as to guarantee the high efficiency and completeness of file transmission. In the environment of simulation experi- ment with 2 host networks, the designed multi-stream transmission mechanism achieves conspicuous performance improvement in comparison with the traditional transmission methods.

关 键 词：泛在网 多流多宿主 传输效率 文件分割重组 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]