基于海流运动的海洋传感器网络拓扑控制问题研究.pdf

文档介绍：刘林峰: 基于海流运动的海洋传感器网络拓扑控制问题研究
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基于海流运动的海洋传感器网络拓扑控制问题研究
刘林峰
(南京邮电大学计算机学院, 江苏南京 210003)
Research on Topology Control Problems of Ocean works Based on
Ocean Current Movement*
LIU Lin-Feng
(College puter, Nanjing University of Posts and munications, Nanjing 210003, China)

Abstract: Nodes may be drifting with the current movement in ocean work, which will be moved from
the initial deployment location. To ensure that work is capable of covering target event area and formatting
optimal topology after the relocation, work deployment method and topology formation strategy have been
studied. The ocean work model and current movement model is established firstly, then the node
movement laws with typical ocean currents are analyzed. Thus deployment method of ocean work is
given. Moreover, the objectives of topology control based on ocean environment are proposed, and a topology
control algorithm OTCA for ocean environment is designed. OTCA formats three-dimensional topology into
clusters with proper size. Simulation experiments suggest OTCA can calculate the position offset of ocean sensor
networks, and it can acquire a optimal topology which munication delay and prolonging the
lifetime.
Key words: ocean sensor work; ocean current movement; topology control; deployment problem;
摘要: 海洋传感器网络中节点随着海流运动发生漂流,会迁移离开初始部署位置。为确保迁移后网络能
覆盖目标事件区域和形成较优拓扑,本文研究了网络部署方法和拓扑形成策略。首先建立了海洋传感器网
络模型和海流运动模型,分析了在典型海流运动中海洋传感器节点的迁移规律,从而给出了海洋传感器网
络的部署方法。此外,基于海洋环境提出了海洋传感器网络拓扑控制的目标需求,设计了一种适合该场景
的拓扑控制算法 OTCA,OTCA 采用三维分簇方式形成立体的拓扑结构,并采用合适的簇大小。仿真实验
表明,OTCA 能计算出海洋传感器网络的方位偏移量,且能获取较优的分簇结构,降低网络通信时延,还
通过有效节能延长了海洋传感器网络的生命期。

关键词: 海洋传感器网络;海流运动;拓扑控制;部署问题;

中图法分类号: TP393 文献标识码: A


∗ Supported by the National Natural Science Foundation of China under Grant Nos. 60903181, 40801149 (国
家自然科学基金); the National High-Tech Research and Development Plan of China under Grant No.
2009AA12Z219 (国家高技术研究发展计划(863)); the High School Natural Science Foundation of Jiangsu
Pro