项目名称: 容延迟移动传感器网络中基于热点的路由协议研究
项目编号: No.61272448
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 自动化技术、计算机技术
项目作者: 周激流
作者单位: 四川大学
项目金额: 70万元
中文摘要: 容延迟移动传感器网络能够利用节点的移动性在不连通/部分连通的网络环境中完成数据的传输,能够支持很多传统无线传感器网络难以支持的应用场景。相较于传统无线传感器网络,容延迟移动传感器网络具有节点移动,节点间连接有限,通信链路不稳定,网络间歇性连通,数据分组传输容延迟性和节点缓冲有限性的特点。这些特点使得容延迟移动传感器网络中的路由变成了一个挑战性的问题。课题拟针对容延迟移动传感器网络中的路由问题展开研究,以克服现有路由协议带来的热节点问题和保证自动对节点移动模式的变化做出及时有效地响应为目标,根据网络中节点移动的规律提出热点提取算法,进而对选取出的热点进行实时分类,引入中继节点按特定的轨迹周期性地访问网络中的热点,实现移动传感器节点和汇聚节点间的中继,最终,完成一套适用于容延迟移动传感器网络,自动适应不同节点移动模式的路由协议及其实现算法,并通过仿真试验和理论分析评价所提出的路由协议
中文关键词: 容延迟网络;容延迟移动传感器网络;路由;移动轨迹;移动控制
英文摘要: Delay Tolerant Mobile Sensor Networks (DTMSN) can perform data transmission services in no-connectivity / partially connectivity environment with node mobility,which expands the application scenarios of conventional WSN DTMSN distinguish itself from WSN by the following characteristics: nodal mobility, limited contact between node, unstable link status, intermittent connectivity, delay and fault tolerance for packet, and limited nodal buffer. These characteristics make routing in DTMSN becoming a very challenging problem. This research is planning to study the routing in DTMSN. Aiming to address the hot-nodes problem in existing routing schemes in DTMSN and guarantee to adapt the changing of node mobility pattern effectively, the popular areas that nodes visit frequently, named hotspots, are abstracted based on nodes trajectory and classified dynamically. A mobile-assisted carrier is introduced and assigned to each class to rely the data transmission between mobile sensor nodes and sink by visiting hotspots. Finally, an adaptive routing protocol for various node mobility pattern in DTMSN will proposed and evaluated by simulation program, testbed, and theory analysis.
英文关键词: DTN;DTMSN;Routing;Mobile Trajectory;Mobility Control