| 基于无线传感器网络时间同步MAC协议研究 |
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| 引用本文： | 杨逊豪,何加铭,董义旺,吴刚. 基于无线传感器网络时间同步MAC协议研究[J]. 无线电通信技术, 2012, 38(6) |
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| 作者姓名： | 杨逊豪 何加铭 董义旺 吴刚 |
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| 作者单位： | 1. 宁波大学通信技术研究所,浙江宁波315211 浙江省移动网应用技术重点实验室,浙江宁波315211
2. 中国电信股份有限公司宁波分公司,浙江宁波,315001 |
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| 基金项目： | 基金项目:浙江省重大科技专项，浙江省移动网络应用技术联合重点实验室，浙江省移动互联网用户端软件科技创新团队 |
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| 摘 要： | 针对S-MAC协议中不同虚拟簇边界节点的帧的监听时隙不同,提出了在每个节点中保存一个调度表列表,设计创建生成树同步算法。根据优先级标准,在虚拟簇边界节点上进行调度取舍,实现调度的全网同步,完成虚拟簇的合并,消除边界节点,从而解决边界节点能耗过快的问题。仿真结果表明,相比于原有协议,改进后的协议减少网络能耗,降低了数据传输时延。
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| 关 键 词： | 无线传感器网络 媒体访问控制协议 节点功耗 虚拟簇 生成树 |
Time Synchronization MAC Protocol for Wireless Sensor Network |
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| Abstract: | Aiming at the differences among the monitoring time slots of the frames of different boundary nodes in S-MAC protocol,it is put forward that a scheduling-table list is preserved in each node,and hereby the spanning tree synchronization algorithm is set up.The amount of nodes within the cluster is counted by making use of the spanning tree,and based on this the suitable scheduling-table lists in the boundary nodes within the cluster can be chosen so as to realize the synchronization of the whole network in the scheduling list and the merging of the clusters,as well as remove the boundary nodes.The simulation result indicates that the improved protocol reduces the energy consumption and the delay of data transmission. |
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| Keywords: | WSN medium access control protocol node energy consumption virtual cluster spanning tree |
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