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1. 湖北交通职业技术学院 交通信息学院,湖北 武汉 430079
2. 武汉数字工程研究所 系统科研部,湖北 武汉 430074
[ "夏奕(1982-),女,湖北武汉人,硕士,湖北交通职业技术学院讲师,主要研究方向为容迟容断网络、传感器网络、机会路由、拥塞控制等。" ]
[ "邓广宏(1981-),男,湖北钟祥人,博士,武汉数字工程研究所高级工程师,主要研究方向为移动传感器网络、机会网络、网络编码等。" ]
网络出版日期:2015-11,
纸质出版日期:2015-11-25
移动端阅览
夏奕, 邓广宏. DTN分发网络中基于数据投递概率的拥塞控制机制[J]. 通信学报, 2015,36(Z1):22-39.
Yi XIA, Guang-hong DENG. Congestion control mechanism based on data delivery probability in DTN data dissemination network[J]. Journal on communications, 2015, 36(Z1): 22-39.
夏奕, 邓广宏. DTN分发网络中基于数据投递概率的拥塞控制机制[J]. 通信学报, 2015,36(Z1):22-39. DOI: 10.11959/j.issn.1000-436x.2015278.
Yi XIA, Guang-hong DENG. Congestion control mechanism based on data delivery probability in DTN data dissemination network[J]. Journal on communications, 2015, 36(Z1): 22-39. DOI: 10.11959/j.issn.1000-436x.2015278.
针对 DTN 网络数据编码分概 发过程中数据拥塞造成投递性能下降的问题,提出了一种基于主题数据投递率的节点拥塞控制机制(CCM-DP)。综合考虑节点移动模型、主题包投递概率、节点拥塞程度等因素建立数据投递概率模型,从两方面进行拥塞控制,一方面基于数据投递概率动态调节数据分组转发过程,避免节点因过 收取多的数据分组造成拥塞,另一方面,通过设计合理的丢弃策略,降低因拥塞造成数据分组丢失产生的影响。最后,将该拥塞控制机制应用在数据分发过程中进行了仿真分析,结果表明,该方法能提升数据拥塞情况下的数据投递性能。
A congestion control mechanism based on data delivery probability (CCM-DP) was proposed to work out the decline of data delivery performance on account of data congestion in delay tolerant networks (DTN) network coding-based data dissemination process.Considering the node mobility model
data delivery probability and data congestion degree
the data delivery probability model was constructed
and the congestion control mechanism was designed from two aspects
on the one hand
by the means of adjusting the packet forwarding process
it equilibriums the data packet delivery to avoid node congestion caused by too many packets received; and on the other hand
through the design of efficient discarding strategy
it reduces the impact of packet loss caused by data congestion.Ultimately
it was put into use in data dissemination process and some simulations were taken
the simulation results show that
CCM-DP can improve data delivery performance in data congestion environment.
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ARI K,JÖRG O , TEEMU K . The ONE simulator for DTN protocol evaluation [A ] . SIMUTools 2009 [C ] . Rome,Italy , 2009 .
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