面向低轨星地传感网的QoS路由机制研究

项目名称： 面向低轨星地传感网的QoS路由机制研究

项目编号： No.61203217

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 自动化学科

项目作者： 饶元

作者单位： 安徽农业大学

项目金额： 26万元

中文摘要： 融合低轨卫星网和地面无线传感网的低轨星地传感网在林业防火监测、灾害评估与救援等复杂环境应用场景中具有独特的作用。随着无线传感执行网等新型传感网的出现，迫切要求能够及时收集数据或将指令传送到执行节点，然而低轨星地传感网的QoS路由机制尚不明确。本项目以该网络体系下的地面段QoS路由机制为研究对象，首先研究部署位置受限、不受限两种场景下的地面网关选址方法；接着探索基于地面网关分簇、网关联动与增强部署的组网方法，研究星地通信网关选取及网关间路由算法；最后研究传感器节点的非均匀分簇方法、能量空洞定位与避免方法，在此基础上设计地面段传感网跨层路由算法；分析网关部署与端到端时延等QoS指标的内生联系、量化传感器与网关节点间的能量需求关系；通过软件仿真和模拟部署验证提出的路由机制的有效性，为低轨星地传感网的部署与应用提供理论基础。

中文关键词： 星地传感网；QoS路由；区分服务；跨层路由；

英文摘要： LEO satellite-ground sensor network, which combines LEO satellite network with wireless sensor network, is to play an important role in many scenarios, such as forestry fire prevention monitoring, disaster assessment and rescue, etc. In wireless sensor actor networks, it is urgent that data should be collected and the instruction be sent to the execution node timely. However, QoS routing is poorly elucidated for LEO satellite-ground sensor network. The project focuses on the research on QoS routing for the ground part of LEO satellite-ground sensor network. Firstly, the gateway location is investigated under the two scenarios: location limited and unlimited respectively. Secondly, the gateway networking method is explored by means of clustering, movement and enhance deployment. Moreover, we consider the corresponding gateway selection strategy and routing among gateways. Finally, we will deliberate cross layer routing algorithm for ground sensor network based on non-uniform clustering, energy hole locating and avoidance method. Based on the former research, we will conclude the relationship between gateway deployment and end-to-end delay; quantify the energy requirement between sensor node and gateway. The proposed routing mechanism will be tested and demonstrated by software simulation and prototype deploymen

英文关键词： satellite-ground sensor network；QoS routing；differentiated service；cross-layer routing；