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| 1 | Chain-type wireless sensor network node scheduling strategy显示文摘In order to reduce power consumption of sensor nodes and extend network survival time in the wireless sensor network(WSN), sensor nodes are scheduled in an active or dormant mode. A chain-type WSN is fundamentally different from other types of WSNs, in which the sensor nodes are deployed along elongated geographic areas and form a chain-type network topology structure. This paper investigates the node scheduling problem in the chain-type WSN. Firstly, a node dormant scheduling mode is analyzed theoretically from geographic coverage, and then three neighboring nodes scheduling criteria are proposed. Secondly, a hybrid coverage scheduling algorithm and dead areas are presented. Finally, node scheduling in mine tunnel WSN with uniform deployment(UD), non-uniform deployment(NUD) and optimal distribution point spacing(ODS) is simulated. The results show that the node scheduling with UD and NUD, especially NUD,can effectively extend the network survival time. Therefore, a strategy of adding a few mobile nodes which activate the network in dead areas is proposed, which can further extend the network survival time by balancing the energy consumption of nodes. | Guangzhu Chen Qingchun Meng Lei Zhang | 2014 | Journal of Systems Engineering and Electronics2014，25，2： | 9 |
| 2 | 基于稳定分簇的移动自组织网络路由协议显示文摘移动自组织网络的动态拓扑特性给其分簇路由协议的设计带来了一定的挑战,而分簇算法作为分簇路由协议中重要的技术手段,如何建立一种有效稳定的分簇机制,对分簇路由协议的性能至关重要。本文在大规模网络环境下,提出一种稳定的分簇算法,并在此基础上提出一种分簇路由协议。为提高网络性能,该分簇路由协议簇间采用被动模式,簇内采用主动模式,并且各个分簇由簇首、网关、访客和普通簇节点组成。仿真结果表明:该分簇算法减少了簇的数量和簇成员在簇间的切换次数,提高了分簇的稳定性。相应的分簇路由协议较该类协议也降低了网络的平均端到端时延和平均路由开销,提高了数据包接收的成功率。 | 黄金科 樊晓光 万明 禚真福 杨永建 陈少华 | 2016 | 北京航空航天大学学报2016，42，11： | 8 |
| 3 | 支持QoS的MANETs资源预留型MAC协议显示文摘本文针对移动自组织网络中实时业务特殊的服务质量(quality of service,QoS)需求,提出了一种新的媒体访问控制(media access control,MAC)协议,即基于公平的时分多址(fair-time division multiple access,F-TDMA)协议。该协议采用特定的时隙分配算法,来确保实时业务的QoS需求,并兼顾数据业务的接入性能。OPNET仿真表明:F-TDMA协议较现有协议具有较低的接入时延和较高的吞吐量,并且针对不同的业务类型F-TDMA协议可以优先确保实时业务的接入性能,同时又不会使数据业务的接入时延过大而失去发送的意义。 | 黄金科 樊晓光 万明 禚真福 李晓辉 | 2016 | 系统工程与电子技术2016，38，4： | 1 |
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