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网络编码感知的无线机会路由性能分析模型 被引量：1

Performance Model for Network-coding-aware Opportunistic Routing in Wireless Networks
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摘要 结合基于优先级的ACK回复策略,提出网络编码感知的无线机会路由性能分析模型。该模型探讨多个中继节点时无线信道丢包对网络性能的影响。为此,建立二维马尔科夫链模型对802.11DCF信道接入机制进行数学建模分析,从而得到数据包成功投递概率和网络吞吐量公式。数学分析结果表明:结合机会路由和网络编码,通过增加中继节点数量,可以提高数据包的投递概率和网络吞吐量。 This paper proposed a performance model for network-coding-aware opportunistic routing in wireless net- works working together with multi-priority ACK response strategy, where the focus is on exploring the impact of the packet loss of wireless channel on the network＇s performance as relay nodes increases. A Markov chain model is deve- loped to characterize DCF random channel access mechanism, thus the important parameters with respect to network performance are obtained. The mathematical results show that the joint design of opportunistic routing and network coding can greatly improve the packet delivery ratio and end-to-end throughput when increasing the number of relays.
作者 陶雯 金玲 白光伟 沈航
机构地区 江苏第二师范学院数学与信息技术学院 南京工业大学计算机科学与技术系
出处 《计算机科学》 CSCD 北大核心 2016年第9期156-159,共4页 Computer Science
基金 国家自然科学基金(60673185 61073197) 江苏省自然科学基金(BK2010548) 江苏省科技支撑计划(工业)(BE2011186) 江苏省未来网络前瞻性研究项目(BY2013095-4-09) 南京邮电大学宽带无线通信与传感网技术教育部重点实验室开放研究基金资助课题项目(NYKL201304) 江苏省六大高峰人才基金(第八批)资助课题资助
关键词 网络编码 机会路由 信道接入 马尔科夫链 Network coding, Opportunistic routing,Channel access, Markov chain
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献11

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二级参考文献24

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计算机科学
2016年 第9期

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