| 基于流内与流间网络编码的DTMSN广播传输机制 |
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| 引用本文： | 姚建盛,马春光,袁琪,李增鹏.基于流内与流间网络编码的DTMSN广播传输机制[J].北京邮电大学学报,2017,40(5):18-23. |
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| 作者姓名： | 姚建盛 马春光 袁琪 李增鹏 |
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| 作者单位： | 吉林师范大学 计算机学院,吉林 四平136000;哈尔滨工程大学 计算机科学与技术学院, 哈尔滨150001;哈尔滨工程大学 计算机科学与技术学院,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金项目，高等学校博士学科点专项科研基金课题(博导类)，黑龙江省自然科学基金项目 |
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| 摘 要： | 提出了一种基于流内与流间网络编码的延迟容忍移动传感器网络(DTMSN)高效广播传输机制.在该机制中,汇聚节点利用随机线性网络编码将原始数据处理成编码包,然后转发给传感器节点.传感器节点间利用一种优化的机会网络编码算法交换编码包.当传感器节点收到足够多的线性无关编码包时解码得到原始广播数据.理论分析和仿真实验表明,与仅基于随机线性网络编码的广播传输机制相比,该机制能进一步减小广播时延和网络负载.
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| 关 键 词： | 延迟容忍移动传感器网络 广播传输 网络编码 随机线性网络编码 机会网络编码 |
A Broadcast Transmission Scheme for DTMSN Based on Intra-flow and Inter-flow Network Coding |
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| Abstract: | An efficient broadcast transmission scheme based on intra-flow and inter-flow network coding in delay tolerant mobile sensor networks ( DTMSN) was proposed. In the scheme, the sink nodes trans-form the original broadcast data into coded packets by utilizing random linear network coding, and then forward them to sensor nodes. Sensor nodes exchange the coded packets by employing an optimized op-portunistic network coding algorithm. Once receiving enough independent coded packets, the sensor nodes can decode them and obtain the original broadcast data from the sink node. Analysis and simulation show that the scheme can further reduce broadcast delay and network cost than those schemes only based on random linear network coding. |
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| Keywords: | delay tolerant mobile sensor networks broadcast transmission network coding random lin-ear network coding opportunistic network coding |
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