针对高危仓库区域分散和结构复杂的特点,设计一种基于软件定义无线传感网络(Software Defined Wireless Sensor Network,SD-WSN)的高危仓储监测系统。系统由传感节点、控制器和监控软件组成,传感节点根据流表的匹配规则采集环境信息,控...针对高危仓库区域分散和结构复杂的特点,设计一种基于软件定义无线传感网络(Software Defined Wireless Sensor Network,SD-WSN)的高危仓储监测系统。系统由传感节点、控制器和监控软件组成,传感节点根据流表的匹配规则采集环境信息,控制器集中管控路由策略和传感任务,监控软件收集环境数据并图形化显示。同时,终端用户能够根据控制器提供的接口制定传感任务,以更新流表的方式实现节点功能的重新配置。测试结果表明:该系统具有可编程的特点,能够实现对不同安全指标的灵活监测,同时具有良好的通信可靠性。展开更多
A flexible and controllable movement-assisted software-defined sensor network(MA-SDSN)based on the software-defined network(SDN)and network function virtualization(NFV)is proposed.First,a three-layer fundamental archi...A flexible and controllable movement-assisted software-defined sensor network(MA-SDSN)based on the software-defined network(SDN)and network function virtualization(NFV)is proposed.First,a three-layer fundamental architecture is proposed to overcome the inherent distributed management and rigidity of the conventional wireless sensor networks.Furthermore,the platform for research and development of MA-SDSN is established,and the dumb node(DN),the software-defined node(SN)and the movement-assisted node(MN)are designed and implemented.Then,the southbound application programming interface(API)is designed to provide a series of frames for communication between controllers and sensor nodes.The northbound API is developed and demonstrated overall and in detail.The functions of the controller are presented including topology discovery,dynamic networking,packet processing,mobility management and virtualization.Followed by the MA-SDSN network model,a Markov chain-based movement-assisted weighted relocation(MMWR)topology control algorithm is proposed to redeploy the MNs based on the node status and weight.Simulation results and analysis indicate that the proposed algorithm based on the MA-SDSN extends network lifetime with a lower average power consumption.展开更多
文摘针对高危仓库区域分散和结构复杂的特点,设计一种基于软件定义无线传感网络(Software Defined Wireless Sensor Network,SD-WSN)的高危仓储监测系统。系统由传感节点、控制器和监控软件组成,传感节点根据流表的匹配规则采集环境信息,控制器集中管控路由策略和传感任务,监控软件收集环境数据并图形化显示。同时,终端用户能够根据控制器提供的接口制定传感任务,以更新流表的方式实现节点功能的重新配置。测试结果表明:该系统具有可编程的特点,能够实现对不同安全指标的灵活监测,同时具有良好的通信可靠性。
基金The National Natural Science Foundations of China(No.61471164,61601122)
文摘A flexible and controllable movement-assisted software-defined sensor network(MA-SDSN)based on the software-defined network(SDN)and network function virtualization(NFV)is proposed.First,a three-layer fundamental architecture is proposed to overcome the inherent distributed management and rigidity of the conventional wireless sensor networks.Furthermore,the platform for research and development of MA-SDSN is established,and the dumb node(DN),the software-defined node(SN)and the movement-assisted node(MN)are designed and implemented.Then,the southbound application programming interface(API)is designed to provide a series of frames for communication between controllers and sensor nodes.The northbound API is developed and demonstrated overall and in detail.The functions of the controller are presented including topology discovery,dynamic networking,packet processing,mobility management and virtualization.Followed by the MA-SDSN network model,a Markov chain-based movement-assisted weighted relocation(MMWR)topology control algorithm is proposed to redeploy the MNs based on the node status and weight.Simulation results and analysis indicate that the proposed algorithm based on the MA-SDSN extends network lifetime with a lower average power consumption.
