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电子学报  2014 

DTN网络环境下基于蚁群算法的数据编码分发

DOI: 10.3969/j.issn.0372-2112.2014.08.028, PP. 1636-1641

Keywords: 延迟容忍网络,随机网络编码,蚁群算法,数据分发

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Abstract:

提出了一种DTN多源多宿网络的数据编码分发机制(DataDisseminationMechanismwithNetworkCodingBasedonAntColonyAlgorithm,DDM-NC).在发布/订阅机制的基础上,通过对主题数据的编码运算和传输,充分利用网络容量进行数据多播,使得数据传输具有更好的安全性和传输效率;同时,针对编码包洪泛传输过程中信息冗余大,无效投递较多等问题,设计了基于蚁群算法的编码包路由策略,引导编码包向信宿聚集,降低编码投递过程中的数据冗余,减少投递延迟.仿真实验表明,相比传统的DTN传染病路由策略和随机网络编码传输方法,DDM-NC方法有更好的数据投递性能.

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